service MAZDA 6 2002 Workshop Manual Suplement

TROUBLESHOOTING
K2–189
K2
Diagnostic procedure
End Of SieNO.3 VEHICLE MOVES IN P POSITION, OR PARKING GEAR DOES NOT DISENGAGE WHEN P IS
DISENGAGED
A6E578001030206
End Of SieNO.4 EXCESSIVE CREEPA6E578001030207
End Of SieNO.5 NO CREEP AT ALLA6E578001030208
STEP INSPECTION ACTION
1•Does vehicle creep when selector lever
moved slightly in N position?Yes•Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
—If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See K2–99 AUTOMATIC TRANSAXLE AND
TRANSFER REMOVAL/INSTALLATION.)
(See ATX Workshop Manual.)
No Inspect and adjust selector lever.
(See K2–117 SELECTOR LEVER INSPECTION.)
(See K2–118 SELECTOR CABLE ADJUSTMENT.)
2•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.
3 Vehicle moves in P position, or parking gear does not disengage when P is disengaged
DESCRIPTION•Vehicle rolls when on a downward slope and tires do not lock in P position.
•Tires locked when P disengaged, vehicle does not move in D range, and R position when accelerator
pedal depressed, and engine remains in stall condition.
POSSIBLE
CAUSE•Malfunction of parking mechanism (May have effect on noise or shock from transaxle)
•Improper adjustment of selector lever
•If vehicle moves in N position, perform symptom troubleshooting No.2 “Vehicle moves in N position”
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
4 Excessive creep
DESCRIPTION•Vehicle accelerates in D range, and R position without depressing accelerator pedal.
POSSIBLE
CAUSE•Engine idle speed high (transaxle system is not cause of problem)
•Go to symptom troubleshooting No.9 “Fast idle/runs on”
(See Section F.)
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
5 No creep at all
DESCRIPTION•Vehicle does not move in D range, or R position when idling on flat paved road.
POSSIBLE
CAUSE•Either engine output low or there is clutch circuit slippage.
—Clutch burned
•Line pressure low
•Malfunction of shift solenoid A, B, or C
•Malfunction of body ground
•Malfunction of control valve body
—Transaxle fixed in 4GR (Operation of fail-safe function)
•Short or open circuit in wiring
•Poor connection of connector
•Electronic parts of output and input system malfunctioning
—Engine torque is not start
•Malfunction of torque converter
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.

K2–190
TROUBLESHOOTING
Diagnostic procedure
End Of SieNO.6 LOW MAXIMUM SPEED AND POOR ACCELERATIONA6E578001030209
Diagnostic procedure
STEP INSPECTION ACTION
1•Does vehicle creep in P and/or N position? Yes Inspect or adjust the selector lever.
(See K2–117 SELECTOR LEVER INSPECTION.)
(See K2–118 SELECTOR CABLE ADJUSTMENT.)
No Go to next step.
2•Stop engine.
•Inspect pressure control solenoid circuit.
•Is it okay?Yes Go to next step.
No•Inspect for pressure control solenoid mechanical stuck.
(See K2–88 SOLENOID VALVE INSPECTION.)
—If pressure control solenoid okay, inspect for open or
short circuit between TCM connector terminal 2Y and
pressure control solenoid connector terminal D.
3•Remove torque converter.
•Inspect torque converter.
(See ATX Workshop Manual.)
•Is torque converter okay?Yes•Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
—If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See K2–99 AUTOMATIC TRANSAXLE AND
TRANSFER REMOVAL/INSTALLATION.)
(See ATX Workshop Manual.)
No Replace torque converter.
4•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.
6 Low maximum speed and poor acceleration
DESCRIPTION•Vehicle acceleration poor at start.
•Delayed acceleration when accelerator pedal depressed while driving.
POSSIBLE
CAUSE•If clutch is stuck or does not stay in 4GR, malfunction is in engine circuit.
—Clutch slipped, burned
•Line pressure low
•Incorrect throttle position signal
•Malfunction of VSS
•Malfunction of input/turbine speed sensor
•Malfunction of sensor ground
•Malfunction of shift solenoids A, B, or C
•Malfunction of body ground
•Malfunction of control valve body
—Transaxle fixed in 4GR (Operation of fail-safe function)
•Short or open circuit in wiring
•Poor connection of connector
•Electronic parts of output and input system malfunction are malfunctioning
—Insufficient starting torque (Suspected when in-gear condition, shift control and engine circuit are
normal)
•Malfunction of torque converter (Poor operation, sticking)
—Engagement of TCC operation range (Operation of fail-safe function)
•Malfunction of TFT sensor (Short or open circuit)
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•With ignition switch at ON, does gear
position indicator light indication correspond
to selector lever position?Yes Go to next step.
No Go to symptom troubleshooting No.27 “Gear position
indicator light does not illuminate in M range”, or No.28
“Gear position indicator light illuminates in D range or P, N,
R position”.
2•Go to symptom troubleshooting No.12 “Lack/
loss of power-acceleration/cruise”.
(See Section F.)
•Does engine control system okay?Yes Go to next step.
No Repair or replace any defective parts according to
inspection results.

TROUBLESHOOTING
K2–191
K2
End Of SieNO.7 NO SHIFTINGA6E578001030210
End Of Sie
3•Stop engine.
•Inspect shift solenoid A, B, or C.
•Are they okay?Yes Go to next step.
No•Inspect for shift solenoid mechanical stuck.
(See K2–88 SOLENOID VALVE INSPECTION.)
—If shift solenoids okay, inspect for open or short circuit
between TCM connector terminals 2W, 2T, 2X and
pressure control solenoid connector terminals I, G, or
F.
4•Remove torque converter.
•Inspect torque converter.
(See ATX Workshop Manual.)
•Is torque converter okay?Yes•Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
—If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See K2–99 AUTOMATIC TRANSAXLE AND
TRANSFER REMOVAL/INSTALLATION.)
(See ATX Workshop Manual.)
No Replace torque converter.
5•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM. STEP INSPECTION ACTION
7 No shifting
DESCRIPTION•Single shift range only.
•Sometimes it shifts correctly.
POSSIBLE
CAUSE•When gear position is fixed in 4GR due to the fail-safe operation, malfunction is in the ATX.
•Perform malfunction diagnosis according to No.6 “Low maximum speed and poor acceleration”.
—Clutch burned
•Line pressure low
•Incorrect throttle position signal
•Malfunction of VSS
•Malfunction of input/turbine speed sensor
•Malfunction of sensor ground
•Malfunction of shift solenoid A, B or C
•Malfunction of control valve body
—4GR is fixed (Operation in fail-safe function)
•Short or open circuit in wiring
•Poor connection of connector
•Poor ground of shift solenoid
•Electrical parts of output and input system malfunctioning
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.

TROUBLESHOOTING
K2–193
K2
End Of SieNO.9 ABNORMAL SHIFTINGA6E578001030212
Diagnostic procedure
End Of Sie
NO.10 FREQUENT SHIFTINGA6E578001030213
End Of Sie
5•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM. STEP INSPECTION ACTION
9 Abnormal shifting
DESCRIPTION•Shift incorrectly (incorrect shift pattern).
POSSIBLE
CAUSE•There is a malfunction in signal circuit which controls shifting (Throttle position signal, input/turbine
speed sensor, VSS), control valve is stuck, or clutch circuit is stuck.
—Clutch slipped, burned
•Line pressure low
•Incorrect throttle position signal
•Malfunction of VSS
•Malfunction of input/turbine speed sensor
•Malfunction of sensor ground
•Malfunction of shift solenoid A, B, or C
•Malfunction of TCC solenoid valve
•Malfunction of body ground
•Misadjustment of accelerator cable
•Malfunction of control valve body
•Malfunction or misadjustment of TR switch
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•Inspect continuity between TCM connector
terminals C and Y and transaxle case.
•Is there continuity?Yes Go to next step.
No Repair or replace ground circuit.
2•Stop engine.
•Inspect shift solenoid A, B, or C circuit.
•Are they okay?Yes Inspect TCM connector terminal for bend, damage,
corrosion or poor contact.
No•Inspect connection of shift solenoid A, B, or C terminal
on ATX for bend, damage, corrosion or looseness.
•Inspect for shift solenoid mechanical stuck.
(See K2–88 SOLENOID VALVE INSPECTION.)
—If shift solenoids okay, inspect for open or short circuit
between TCM connector terminals 2W, 2T, 2X and
coupler component terminals I, G, or F.
3•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.
10 Frequent shifting
DESCRIPTION•Downshifting occurs immediately even when accelerator pedal depressed slightly in D range.
POSSIBLE
CAUSE•The circuit which is the cause is basically the same as for No.9 “Abnormal shifting”. However, a
malfunction of input signal to TP sensor, input/turbine speed sensor, VSS (including the sensor ground,
sensor harness and connector), or clutch slippage (clutch stuck, low pressure in line) may also be the
cause.
Note
•Before following troubleshooting steps, make sure that the Automatic Transaxle On-Board
Diagnostic and Automatic Transaxle Basic Inspection are conducted.

K2–194
TROUBLESHOOTING
NO.11 SHIFT POINT IS HIGH OR LOWA6E578001030214
End Of SieNO.12 TORQUE CONVERTER CLUTCH (TCC) NON-OPERATIONA6E578001030215
Diagnostic procedure
11 Shift point is high or low
DESCRIPTION•Shift point considerably different from automatic shift diagram.
•Shift delays when accelerating.
•Shift occurs quickly when accelerating and engine speed does not increase.
POSSIBLE
CAUSE•If the transaxle does not shift abnormally, there is a malfunction of input signal to TP sensor, input/
turbine speed sensor, or VSS.
•If engine speed is high or low regardless that shifting is normal, inspect tachometer.
•Verify that output signal of TP sensor changes linearly.
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
12 Torque converter clutch (TCC) non-operation
DESCRIPTION•TCC does not operate when vehicle reaches TCC operation range.
POSSIBLE
CAUSE•Basically, TCC does not operate when fail-safe is operating. Verify DTC at first. If TCC operates when
driving at high speeds only, the malfunction (improper adjustment) is in D and/or M ranges switch circuit
or TR switch circuit.
Note
•If the TCC or piston is stuck, inspect them. In addition, inspect the oil cooler for foreign particles
which may have mixed in with the ATF.
•TCC piston slipped, burned
—Line pressure low
•Incorrect throttle position signal
•Input/turbine speed sensor malfunction
•TFT sensor malfunction
•Sensor ground malfunction
•VSS malfunction
•Malfunction of output solenoid valve system (Sticking)
•TCC solenoid valve malfunction
•Malfunction of control valve body system (Poor operation, sticking)
•TCC piston hydraulic pressure system malfunction
•Malfunction of TP sensor (Not operating linearly)
•Malfunction of input/turbine speed sensor or VSS
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•Turn ignition switch to ON.
•Does gear position lamp indication
correspond to selector lever position?Yes Go to next step.
No Go to symptom troubleshooting No.27 “Gear position
indicator light does not illuminate in M range”, or No.28
“Gear position indicator light illuminates in D range or P, N,
R positions”.
2•Disconnect TCM.
•Is resistance between ground terminals 1C,
1Y at TCM connector and body ground less
than 5.0 ohm?Yes Go to next step.
No Repair open ground circuit.
3•Remove torque converter.
•Inspect torque converter.
(See ATX Workshop Manual.)
•Is torque converter okay?Yes•Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
•If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See ATX Workshop Manual.)
No•Replace torque converter.
4•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.

TROUBLESHOOTING
K2–195
K2
End Of SieNO.13 NO KICKDOWNA6E578001030216
End Of SieNO.14 ENGINE FLARES UP OR SLIPS WHEN UPSHIFTING OR DOWNSHIFTINGA6E578001030217
Diagnostic procedure
End Of Sie
13 No kickdown
DESCRIPTION•Does not downshift when accelerator pedal fully depressed within kickdown range.
POSSIBLE
CAUSE•If transaxle does not downshift though shifting is normal, malfunction is in TP sensor circuit (including
sensor ground, sensor harness and connector).
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
14 Engine flares up or slips when upshifting or downshifting
DESCRIPTION•When accelerator pedal depressed for driveway, engine speed increases but vehicle speed increase
slowly.
•When accelerator pedal depressed while driving, engine speed increases but vehicle does not.
POSSIBLE
CAUSE•There is clutch slip because clutch is stuck or line pressure is low.
—Clutch stuck, slippage
•Line pressure low
•Incorrect throttle position signal
•Malfunction of VSS
•Malfunction of input/turbine speed sensor
•Malfunction of sensor ground
•Malfunction of shift solenoid A, B, or C
•Malfunction of TCC solenoid valve
•Malfunction of body ground
•Misadjustment of throttle cable
•Malfunction of control valve body
—Poor operation of mechanical pressure
•Selector lever position disparity
•TR switch position disparity
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•Is line pressure okay?
(See K2–72 Line Pressure Test.)Yes Go to next step.
No Repair or replace any defective parts according to
inspection results.
2•Is shift point okay?
(See K2–75 ROAD TEST.)Yes Go to next step.
No Go to symptom troubleshooting No.9 “Abnormal shifting”.
3•Stop engine.
•Inspect shift solenoid A, B, or C circuit.
•Are they okay?Yes•Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
•If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See ATX Workshop Manual.)
No•Inspect for shift solenoid mechanical stuck.
(See K2–88 SOLENOID VALVE INSPECTION.)
4•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.

TROUBLESHOOTING
K2–197
K2
End Of SieNO.18 EXCESSIVE SHIFT SHOCK IS GIVEN WHEN UPSHIFTING AND DOWNSHIFTINGA6E578001030221
End Of SieNO.19 EXCESSIVE SHIFT SHOCK ON TORQUE CONVERTER CLUTCH (TCC)A6E578001030222
End Of Sie
3•Is line pressure okay?
(See K2–72 Line Pressure Test.)Yes Go to next step.
No Repair or replace any defective parts according to
inspection results.
4•Is stall speed okay?
(See K2–74 Stall Speed Test.)Yes Go to next step.
No Go to Step 6.
5•Inspect TR switch and related harness:
vibration, intermittent open/short circuit.
•Is it okay?Yes Go to next step.
No Repair or replace part if necessary.
6•Stop engine and turn ignition switch on.
•Inspect pressure control solenoid circuit.
•Is it okay?Yes•Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
•If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See ATX Workshop Manual.)
No•Inspect for pressure control solenoid mechanical stuck.
(See K2–88 SOLENOID VALVE INSPECTION.)
7•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM. STEP INSPECTION ACTION
18 Excessive shift shock is given when upshifting and downshifting
DESCRIPTION•Excessive shift shock felt when depressing accelerator pedal to accelerate at upshifting.
•During cruising, excessive shift shock felt when depressing accelerator pedal at downshifting.
POSSIBLE
CAUSE•Shift shock may worsen when fail-safe is operating. The shift shock has worsen if TP sensor, input/
turbine speed sensor, or VSS signal malfunctions.
—Clutch slipped, burned
•Line pressure low, high
•Incorrect throttle position signal
•Malfunction of VSS
•Malfunction of input/turbine speed sensor
•Malfunction of TFT sensor
•Malfunction of shift solenoid A, B, or C
•Malfunction of TCC solenoid valve
•Misadjustment of throttle cable
•Malfunction of body ground and sensor ground
•Malfunction of control valve body
—Poor hydraulic operation (Malfunction in range change)
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
19 Excessive shift shock on torque converter clutch (TCC)
DESCRIPTION•Strong shock felt when TCC engaged.
POSSIBLE
CAUSE•The troubleshooting flow is the same as No.16 “Judder upon torque converter clutch (TCC) operation”.
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.

K2–198
TROUBLESHOOTING
NO.20 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN ALL POSITIONS/RANGESA6E578001030223
Diagnostic procedure
End Of SieNO.21 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN D RANGE, OR IN R POSITIONA6E578001030224
End Of SieNO.22 NO ENGINE BRAKING IN 1GR POSITION OF M RANGEA6E578001030225
Diagnostic procedure
20 Noise occurs at idle when vehicle is stopped in all positions/ranges
DESCRIPTION•Transaxle noisy in all positions and ranges when vehicle idling.
POSSIBLE
CAUSE•Malfunction is in pressure solenoid or oil pump which causes a high-pitched noise to be emitted from
transaxle at idle.
Note
•If a noise is emitted during shifting only, malfunction is in shift solenoid A, B, or C.
•If a noise is emitted during shifting at certain gears only or during deceleration only, it is gear noise.
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•Inspect engine condition.
•Is any engine concern (e.g. Rough idle)?Yes Go to appropriate symptom troubleshooting.
(See F1–57 ENGINE SYMPTOM TROUBLESHOOTING.)
No Replace basic inspection and repair or replace any
defective parts according to inspection result.
2•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.
21 Noise occurs at idle when vehicle is stopped in D range, or in R position
DESCRIPTION•Transaxle noisy in driving ranges when vehicle idling.
POSSIBLE
CAUSE•Although the malfunction is basically the same as No.20 “Noise occurs at idle when vehicle is stopped
in all positions/ranges”, other causes may be selector lever position disparity or TR switch position
disparity.
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
22 No engine braking in 1GR position of M range
DESCRIPTION•Engine speed drops to idle but vehicle coasts when accelerator pedal released during cruising at
medium to high speeds.
•Engine speed drops to idle but vehicle coasts when accelerator pedal released when in M range (1GR)
at low vehicle speed.
POSSIBLE
CAUSE•Clutch slipped, burned (Reduction brake)
—Line pressure low
•Malfunction of VSS
•Malfunction of input/turbine speed sensor
•Malfunction of sensor ground
•Malfunction of control valve body
—M range switch on not judged by TCM (short, or open circuit, poor operation)
•Malfunction of M range switch signal
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•Inspect TR switch adjustment.
•Does TR switch adjusted properly?
•Select PNP PID.
•Is PNP PID reading okay when selecting
range?Yes Go to next step.
No Adjust TR switch as necessary.
(See K2–83 TRANSAXLE RANGE (TR) SWITCH
ADJUSTMENT.)
Inspect TR switch.
Repair or replace any defective parts.

TROUBLESHOOTING
K2–199
K2
End Of SieNO.23 TRANSAXLE OVERHEATSA6E578001030226
Diagnostic procedure
End Of SieNO.24 ENGINE STALLS WHEN SHIFTED TO D RANGE, OR IN R POSITIONA6E578001030227
2•Do following symptoms concurrently occur?
—Engine flares up or slips during
acceleration
—Engine flares up or slips when shiftingYes Go to symptom troubleshooting No.14 “Engine flares up or
slips when upshifting or downshifting” or No.15 “Engine
flares up or slips when accelerating vehicle”.
No Go to next step.
3•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM. STEP INSPECTION ACTION
23 Transaxle Overheat
DESCRIPTION•Burnt smell emitted from transaxle.
•Smoke emitted from transaxle.
POSSIBLE
CAUSE•Malfunction is restricted to hindrance of coolant at oil cooler. In addition, overheating of transaxle may
be caused by a malfunction of TFT sensor.
—Line pressure low
•ATF level low
•Incorrect throttle position signal
•Misadjustment of throttle cable
—Oil cooler malfunction (Foreign material mixed in with ATF)
—TFT sensor malfunction
—Excessive amount of ATF
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•Is line pressure okay?
(See K2–72 Line Pressure Test.)Yes Go to next step.
No Repair or replace any defective parts according to
inspection results.
2•Is stall speed okay?
(See K2–74 Stall Speed Test.)Yes Go to next step.
No Repair or replace any defective parts according to
inspection results.
3•Inspect TFT sensor and related harness:
vibration, intermittent open/short circuit
•Is it okay?Yes Go to next step.
No Repair or replace part if necessary.
4•Inspect pressure control solenoid circuit.
•Is it okay?Yes Go to next step.
No•Inspect for pressure control solenoid mechanical stuck.
(See K2–88 SOLENOID VALVE INSPECTION.)
5•Inspect for bend, damage, corrosion or kinks
of oil cooler pipes.
•Are oil cooler pipes okay?Yes•Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
•If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See ATX Workshop Manual.)
No Replace any defective parts.
6•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.
24 Engine stalls when shifted to D range, or in R position
DESCRIPTION•Engine stalls when shifting from N or P position to D range or R position at idle.
POSSIBLE
CAUSE•Malfunction is on the engine control side (e.g. IAC system). Otherwise, malfunction is in input/turbine
speed sensor (engine sometimes starts) or TCC piston circuit (engine always stalls).
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and
Automatic Transaxle Basic Inspection are conducted.

K2–200
TROUBLESHOOTING
Diagnostic procedure
End Of SieNO.25 ENGINE STALLS WHEN DRIVING AT SLOW SPEED OR STOPPINGA6E578001030228
Diagnostic procedure
End Of SieNO.26 STARTER DOES NOT WORKA6E578001030229
End Of SieNO.27 GEAR POSITION INDICATOR LIGHT DOES NOT ILLUMINATE IN M RANGEA6E578001030230
Diagnostic procedure
STEP INSPECTION ACTION
1•Go to symptom troubleshooting No.4
“Engine stalls-after start/at idle”.
(See Section F.)
•Is engine control system okay?Yes Go to next step.
No Repair or replace any defective parts according to
inspection results.
2•Remove torque converter.
•Inspect torque converter.
(See ATX Workshop Manual.)
•Is torque converter okay?Yes•Inspect for bend, damage or kinks of oil cooler line
pipes. If okay, overhaul control valve body and repair or
replace any defective parts.
(See ATX Workshop Manual.)
•If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See ATX Workshop Manual.)
No Replace torque converter.
3•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.
25 Engine stalls when driving at slow speeds or stopping
DESCRIPTION•Engine stalls when brake pedal depressed while driving at low speed or stopping.
POSSIBLE
CAUSE•Malfunction is on engine control side (e.g. Fuel injection control, IAC system)
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•Go to symptom troubleshooting No.10 “Low
idle/stalls during deceleration”.
(See Section F.)
•Is engine control system okay?Yes Go to symptom troubleshooting No.24 “Engine stalls when
shifted to D range, or in R position”.
No Repair or replace any defective parts according to
inspection results.
2•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.
26Starter does not work
DESCRIPTION•Starter does not work even when P or N position.
POSSIBLE
CAUSE•Selector lever misadjustment.
•TR switch misadjustment.
•Open or short circuit in TR switch.
27 Gear position indicator light does not illuminate in M range
DESCRIPTION•Gear position indicator light in instrument cluster does not illuminate in M range and ignition switch at
on.
POSSIBLE
CAUSE•M range switch, gear position indicator light or related wiring harness malfunction.
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•Are other indicator lights illuminated with
ignition switch on? Yes Go to next step.
No Inspect meter fuse.