check INFINITI M35 2006 Factory Workshop Manual

ON BOARD DIAGNOSTIC (OBD) SYSTEM
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HOW TO ERASE DTC (WITH GST)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Perform AT-103, "
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)" . (The engine warm-up step
can be skipped when performing the diagnosis only to erase the DTC.)
3. Select Mode 4 with GST (Generic Scan Tool). For details, refer to EC-146, "
Generic Scan Tool (GST)
Function" (for VQ35DE engine), EC-859, "Generic Scan Tool (GST) Function" (for VK45DE engine).
HOW TO ERASE DTC (NO TOOLS)
The A/T CHECK indicator lamp is located on the instrument panel.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Perform AT-103, "
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" . (The engine warm-up step
can be skipped when performing the diagnosis only to erase the DTC.)
3. Perform “OBD-II SELF-DIAGNOSTIC PROCEDURE (No tools)”. Refer to EC-67, "
How to Erase DTC"
(for VQ35DE engine), EC-778, "How to Erase DTC" (for VK45DE engine).
Malfunction Indicator Lamp (MIL)NCS001K1
DESCRIPTION
The MIL is located on the combination meters.
1. The MIL will light up when the ignition switch is turned ON with-
out the engine running. This is a bulb check.
If the MIL does not light up, refer to DI-40, "WARNING LAMPS" ,
or see EC-722, "
MIL AND DATA LINK CONNECTOR" (for
VQ35DE engine), EC-1459, "
MIL AND DATA LINK CONNEC-
TOR" (for VK45DE engine).
2. When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
SEF217U

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How to Perform Trouble Diagnosis for Quick and Accurate RepairNCS001K4
INTRODUCTION
The TCM receives a signal from the vehicle speed sensor, accelera-
tor pedal position sensor (throttle position sensor) or PNP switch and
provides shift control or lock-up control via A/T solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the OBD-related parts of the
A/T system for malfunction-diagnostic purposes. The TCM is capa-
ble of diagnosing malfunctioning parts while the ECM can store mal-
functions in its memory.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
tion, etc.
It is much more difficult to diagnose a error that occurs intermittently
rather than continuously. Most intermittent errors are caused by poor
electric connections or improper wiring. In this case, careful check-
ing of suspected circuits may help prevent the replacement of good
parts.
A visual check only may not find the cause of the errors. A road test
with CONSULT-II (or GST) or a circuit tester connected should be
performed. Follow the AT- 4 7 , "
WORK FLOW" .
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “DIAGNOSTIC WORKSHEET” as
shown on the example (Refer to AT- 4 8
) should be used.
Start your diagnosis by looking for “conventional” errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
SAT631IB
SAT632I
SEF234G

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DIAGNOSTIC WORKSHEET
Information from Customer
KEY POINTS
WHAT..... Vehicle and A/T model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions, Symptoms
Diagnostic Worksheet Chart
Customer name MR/MS Model and Year VIN
Trans. Model Engine Mileage
Malfunction Date Manuf. Date In Service Date
Frequency
Continuous Intermittent ( times a day)
Symptoms
Vehicle does not move. ( Any position Particular position)
No up-shift ( 1st 2nd 2nd 3rd 3rd 4th 4th 5th)
No down-shift ( 5th 4th 4th 3rd 3rd 2nd 2nd 1st)
Lock-up malfunction
Shift point too high or too low.
Shift shock or slip ( N D N R Lock-up Any drive position)
Noise or vibration
No kick down
No pattern select
Others
()
A/T CHECK indicator lamp
Continuously lit Not lit
Malfunction indicator lamp (MIL)
Continuously lit Not lit
1 Read the item on cautions concerning fail-safe and understand the customer's complaint.AT- 4 4
2
A/T fluid inspectionAT- 5 3
Leak (Repair leak location.)
State
Amount
3
Stall test and line pressure testAT- 5 3, AT-
55 Stall test
Torque converter one-way clutch
Front brake
High and low reverse clutch
Low coast brake
Forward brake
Reverse brake
Forward one-way clutch
1st one-way clutch
3rd one-way clutch
Engine
Line pressure low
Except for input clutch and direct
clutch, clutches and brakes OK
Line pressure inspection - Suspected part:

TROUBLE DIAGNOSIS
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4
Perform all road tests and enter checks in required inspection items.AT- 5 7
4-1.Check before engine is started AT- 5 7
AT- 1 9 0 , "A/T CHECK Indicator Lamp Does Not Come On"
Perform self-diagnostics. Enter checks for detected items. AT- 9 2 ,AT-103
AT-105, "DTC U1000 CAN COMMUNICATION LINE"
AT-108, "DTC P0615 START SIGNAL CIRCUIT"
AT-112, "DTC P0700 TCM"
AT-113, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
AT-117, "DTC P0717 TURBINE REVOLUTION SENSOR"
AT-119, "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)"
AT-124, "DTC P0725 ENGINE SPEED SIGNAL"
AT-126, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
AT-128, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
AT-130, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
AT-132, "DTC P1705 THROTTLE POSITION SENSOR"
AT-135, "DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT"
AT-140, "DTC P1721 VEHICLE SPEED SENSOR MTR"
AT-142, "DTC P1730 A/T INTERLOCK"
AT-145, "DTC P1731 A/T 1ST ENGINE BRAKING"
AT-147, "DTC P1752 INPUT CLUTCH SOLENOID VALVE"
AT-149, "DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION"
AT-151, "DTC P1757 FRONT BRAKE SOLENOID VALVE"
AT-153, "DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION"
AT-155, "DTC P1762 DIRECT CLUTCH SOLENOID VALVE"
AT-157, "DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION"
AT-159, "DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE"
AT-161, "DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE
FUNCTION"
AT-163, "DTC P1772 LOW COAST BRAKE SOLENOID VALVE"
AT-165, "DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION"
AT-167, "DTC P1815 MANUAL MODE SWITCH"
AT-172, "DTC P1841 ATF PRESSURE SWITCH 1"
AT-174, "DTC P1843 ATF PRESSURE SWITCH 3"
AT-176, "DTC P1845 ATF PRESSURE SWITCH 5"
AT-178, "DTC P1846 ATF PRESSURE SWITCH 6"
4-2.Check at IdleAT- 5 7
AT- 1 9 0 , "Engine Cannot Be Started in “P” or “N” Position"
AT- 1 9 1 , "In “P” Position, Vehicle Moves When Pushed"
AT- 1 9 2 , "In “N” Position, Vehicle Moves"
AT- 1 9 3 , "Large Shock (“N” to “D” Position)"
AT- 1 9 5 , "Vehicle Does Not Creep Backward in “R” Position"
AT- 1 9 7 , "Vehicle Does Not Creep Forward in “D” Position"
4-3.Cruise TestAT- 5 9
Part 1
AT- 1 9 9 , "Vehicle Cannot Be Started from D1"
AT- 2 0 1 , "A/T Does Not Shift: D1 D2"
AT- 2 0 3 , "A/T Does Not Shift: D2 D3"
AT- 2 0 5 , "A/T Does Not Shift: D3 D4"
AT- 2 0 7 , "A/T Does Not Shift: D4 D5"
AT- 2 0 9 , "A/T Does Not Lock-Up"
AT- 2 1 0 , "A/T Does Not Hold Lock-Up Condition"
AT- 2 1 2 , "Lock-Up Is Not Released"
AT- 2 1 2 , "Engine Speed Does Not Return to Idle"

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44-3Part 2AT- 6 1
AT-199, "Vehicle Cannot Be Started from D1"
AT-201, "A/T Does Not Shift: D1 D2"
AT-203, "A/T Does Not Shift: D2 D3"
AT-205, "A/T Does Not Shift: D3 D4"
Part 3AT- 6 2
AT-213, "Cannot Be Changed to Manual Mode"
AT-214, "A/T Does Not Shift: 5th Gear 4th Gear"
AT-215, "A/T Does Not Shift: 4th Gear 3rd Gear"
AT-217, "A/T Does Not Shift: 3rd Gear 2nd Gear"
AT-218, "A/T Does Not Shift: 2nd Gear 1st Gear"
AT-220, "Vehicle Does Not Decelerate by Engine Brake"
Perform self-diagnostics. Enter checks for detected items. AT- 9 2 , AT-103
AT-105, "DTC U1000 CAN COMMUNICATION LINE"
AT-108, "DTC P0615 START SIGNAL CIRCUIT"
AT- 11 2 , "DTC P0700 TCM"
AT- 11 3 , "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
AT- 11 7 , "DTC P0717 TURBINE REVOLUTION SENSOR"
AT- 11 9 , "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)"
AT-124, "DTC P0725 ENGINE SPEED SIGNAL"
AT-126, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
AT-128, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
AT-130, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
AT-132, "DTC P1705 THROTTLE POSITION SENSOR"
AT-135, "DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT"
AT-140, "DTC P1721 VEHICLE SPEED SENSOR MTR"
AT-142, "DTC P1730 A/T INTERLOCK"
AT-145, "DTC P1731 A/T 1ST ENGINE BRAKING"
AT-147, "DTC P1752 INPUT CLUTCH SOLENOID VALVE"
AT-149, "DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION"
AT-151, "DTC P1757 FRONT BRAKE SOLENOID VALVE"
AT-153, "DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION"
AT-155, "DTC P1762 DIRECT CLUTCH SOLENOID VALVE"
AT-157, "DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION"
AT-159, "DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE"
AT-161, "DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE
FUNCTION"
AT-163, "DTC P1772 LOW COAST BRAKE SOLENOID VALVE"
AT-165, "DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION"
AT-167, "DTC P1815 MANUAL MODE SWITCH"
AT-172, "DTC P1841 ATF PRESSURE SWITCH 1"
AT-174, "DTC P1843 ATF PRESSURE SWITCH 3"
AT-176, "DTC P1845 ATF PRESSURE SWITCH 5"
AT-178, "DTC P1846 ATF PRESSURE SWITCH 6"
5 Inspect each system for items found to be NG in the self-diagnostics and repair or replace the malfunctioning parts.
6
Perform all road tests and enter the checks again for the required items.AT- 5 7
7
For any remaining NG items, perform the “Diagnostics Procedure” and repair or replace the malfunctioning
parts. See the chart for diagnostics by symptoms. (This chart also contains other symptoms and inspection pro-
cedures.)AT- 6 4
8 Erase the results of the self-diagnostics from the TCM.AT- 9 6, AT-
104

TROUBLE DIAGNOSIS
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Inspections before Trouble DiagnosisNCS001K7
A/T FLUID CHECK
A/T Fluid Leakage and A/T Fluid Level Check
Inspect for A/T fluid leakage and check the A/T fluid level. Refer to AT- 1 3 , "Checking A/T Fluid" .
A/T Fluid Condition Check
Inspect the A/T fluid condition.
STALL TEST
Stall Test Procedure
1. Inspect the amount of engine oil. Replenish the engine oil if necessary.
2. Drive for about 10 minutes to warm up the vehicle so that the A/
T fluid temperature is 50 to 80
C (122 to 176F). Inspect the
amount of ATF. Replenish if necessary.
3. Securely engage the parking brake so that the tires do not turn.
4. Engine start, apply foot brake, and place selector lever in “D”
position.
Fluid condition Conceivable Cause Required Operation
Varnished (viscous
varnish state)Clutch, brake
scorchedReplace the ATF and check the A/T
main unit and the vehicle for mal-
functions (wire harnesses, cooler
pipes, etc.)
Milky white or cloudy Water in the fluidReplace the ATF and check for
places where water is getting in.
Large amount of metal
powder mixed inUnusual wear of
sliding parts within
A/TReplace the ATF and check for
improper operation of the A/T.
SAT638A
SAT647B
SCIA7463E
SCIA6787E

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ROAD TEST
Description
The road test inspects overall performance of the A/T and analyzes possible malfunction causes.
The road test is performed out in the following three stages.
1. Check before engine is started. Refer to AT- 5 7
.
2. Check at idle. Refer to AT- 5 7
.
3. Cruise test
Inspect all the items from Part 1 to Part 3. Refer to AT- 5 9 , AT- 6 1 , AT- 6 2 .
Before beginning the road test, check the test procedure and inspection items.
Test all inspection items until the symptom is uncovered. Diagnose NG items when all road tests are com-
plete.
Check before Engine Is StartedNCS001K8
1. CHECK A/T CHECK INDICATOR LAMP
1. Park vehicle on level surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
Does A/T CHECK indicator lamp light up for about 2 seconds?
YES >> 1. Turn ignition switch OFF.
2. Perform self-diagnostics and record all NG items on the AT- 4 8 , "
DIAGNOSTIC WORKSHEET"
. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "Diagnostic Procedure with-
out CONSULT-II" .
3. Go to AT- 5 7 , "
Check at Idle" .
NO >> Stop the road test and go to AT- 1 9 0 , "
A/T CHECK Indicator Lamp Does Not Come On" .
Check at IdleNCS001K9
1. CHECK STARTING THE ENGINE
1. Park vehicle on level surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Start engine.
Does the engine start?
YES >> GO TO 2.
NO >> Stop the road test and go to AT- 1 9 0 , "
Engine Cannot Be Started in “P” or “N” Position" .
2. CHECK STARTING THE ENGINE
1. Turn ignition switch ON.
2. Move selector lever to “D”, “M” or “R” position.
3. Start engine.
Does the engine start in any positions?
YES >> Stop the road test and go to AT- 1 9 0 , "Engine Cannot Be Started in “P” or “N” Position" .
NO >> GO TO 3.

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TROUBLE DIAGNOSIS
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3. CHECK “P” POSITION FUNCTIONS
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release the parking brake.
4. Push the vehicle forward or backward.
5. Engage the parking brake.
When you push the vehicle with disengaging the parking brake, does it move?
YES >> Enter a check mark at “In “P” Position, Vehicle Moves When Pushed” on the AT- 4 8 , "DIAGNOS-
TIC WORKSHEET" , then continue the road test.
NO >> GO TO 4.
4. CHECK “N” POSITION FUNCTIONS
1. Start engine.
2. Move selector lever to “N” position.
3. Release the parking brake.
Does vehicle move forward or backward?
YES >> Enter a check mark at “In “N” Position, Vehicle Moves” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.
NO >> GO TO 5.
5. CHECK SHIFT SHOCK
1. Engage the brake.
2. Move selector lever to “D” position.
When the A/T is shifted from
“N” to “D”, is there an excessive shock?
YES >> Enter a check mark at “Large Shock (“N” to “D” Position)” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.
NO >> GO TO 6.
6. CHECK “R” POSITION FUNCTIONS
1. Engage the brake.
2. Move selector lever to “R” position.
3. Release the brake for 4 to 5 seconds.
Does the vehicle creep backward?
YES >> GO TO 7.
NO >> Enter a check mark at “Vehicle Does Not Creep Backward in “R” Position” on the AT- 4 8 , "
DIAG-
NOSTIC WORKSHEET" , then continue the road test.
7. CHECK “D” POSITION FUNCTIONS
Inspect whether the vehicle creep forward when the A/T is put into the “D” position.
Does the vehicle creep forward in the
“D” position?
YES >> Go to AT- 5 9 , "Cruise Test - Part 1" , AT- 6 1 , "Cruise Test - Part 2" and AT- 6 2 , "Cruise Test - Part 3"
.
NO >> Enter a check mark at “Vehicle Does Not Creep Forward in “D” Position” on the AT- 4 8 , "
DIAG-
NOSTIC WORKSHEET" , then continue the road test.

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Cruise Test - Part 1NCS001KA
1. CHECK STARTING OUT FROM D1
1. Drive the vehicle for about 10 minutes to warm up the engine oil and A/T fluid.
Appropriate temperature for the A/T fluid: 50 to 80
C (122 to 176F)
2. Park the vehicle on a level surface.
3. Move selector lever to “P” position.
4. Start the engine.
5. Move selector lever to “D” position.
6. Press the accelerator pedal about half way down to accelerate the vehicle.
With CONSULT-II
Read the gear position. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Starts from D1?
YES >> GO TO 2.
NO >> Enter a check mark at “Vehicle Cannot Be Started from D1” on the AT- 4 8 , "
DIAGNOSTIC WORK-
SHEET" , then continue the road test.
2. CHECK SHIFT-UP D1 D2
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D1
D2) at the appro-
priate speed.
Refer to AT- 6 3 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Read the gear position, throttle degree of opening and vehicle speed. Refer to AT- 9 6 , "
DATA MONITOR
MODE" .
Does the A/T shift-up D1
D2 at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at “A/T Does Not Shift: D1
D2” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.
3. CHECK SHIFT-UP D2 D3
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D2
D3) at the appro-
priate speed.
Refer to AT- 6 3 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Read the gear position, throttle degree of opening and vehicle speed. Refer to AT- 9 6 , "
DATA MONITOR
MODE" .
Does the A/T shift-up D2
D3 at the correct speed?
YES >> GO TO 4.
NO >> Enter a check mark at “A/T Does Not Shift: D2
D3” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.
4. CHECK SHIFT-UP D3 D4
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D3
D4) at the appro-
priate speed.
Refer to AT- 6 3 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Read the gear position, throttle degree of opening and vehicle speed. Refer to AT- 9 6 , "
DATA MONITOR
MODE" .
Does the A/T shift-up D3
D4 at the correct speed?
YES >> GO TO 5.
NO >> Enter a check mark at “A/T Does Not Shift: D3
D4” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.

AT-60
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
5. CHECK SHIFT-UP D4 D5
Press down the accelerator pedal about half-way and inspect if the vehicle shifts up (D4
D5) at the appro-
priate speed.
Refer to AT- 6 3 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Read the gear position, throttle degree of opening and vehicle speed. Refer to AT- 9 6 , "
DATA MONITOR
MODE" .
Does the A/T shift-up D4
D5 at the correct speed?
YES >> GO TO 6.
NO >> Enter a check mark at “A/T Does Not Shift: D4
D5” on the AT- 4 8 , "DIAGNOSTIC WORK-
SHEET" , then continue the road test.
6. CHECK LOCK-UP
When releasing accelerator pedal (closed throttle position signal: OFF) from D5, check lock-up from D5 to L/U.
Refer to AT- 6 3 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for “A/T”. Refer to AT- 9 0 , "
CONSULT-II REFER-
ENCE VALUE" .
Does it lock-up?
YES >> GO TO 7.
NO >> Enter a check mark at “A/T Does Not Lock-up” on the AT- 4 8 , "
DIAGNOSTIC WORKSHEET" ,
then continue the road test.
7. CHECK LOCK-UP HOLD
Check hold lock-up.
With CONSULT-II
Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for “A/T”. Refer to AT- 9 0 , "
CONSULT-II REFER-
ENCE VALUE" .
Does it maintain lock-up status?
YES >> GO TO 8.
NO >> Enter a check mark at “A/T Does Not Hold Lock-up Condition” on the AT- 4 8 , "
DIAGNOSTIC
WORKSHEET" , then continue the road test.
8. CHECK LOCK-UP RELEASE
Check lock-up cancellation by depressing brake pedal lightly to decelerate.
With CONSULT-II
Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for A/T. Refer to AT- 9 0 , "
CONSULT-II REFERENCE
VA L U E" .
Does lock-up cancel?
YES >> GO TO 9.
NO >> Enter a check mark at “Lock-up Is Not Released” on the AT- 4 8 , "
DIAGNOSTIC WORKSHEET" ,
then continue the road test.