NISSAN ALMERA N16 2003 Electronic Repair Manual

DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)
AT-205
[EURO-OBD]
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DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)PFP:31036
DescriptionECS007PX
The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
ON BOARD DIAGNOSIS LOGIC
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted,
always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.
With CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for
A/T with CONSULT-II.
2. Start engine.
3. Run engine for at least 2 seconds at idle speed.
4. If DTC is detected, go to AT- 2 0 6 , "
Diagnostic Procedure" .
Without CONSULT-II
Follow the procedure “With CONSULT-II”.
SAT574J
Diagnostic Trouble Code No. Malfunction is detected when.... Check Item (Possible Cause)
: CONTROL UNIT (RAM),
CONTROL UNIT (ROM)TCM memory (RAM) or (ROM) is malfunc-
tioning.
●TCM
SAT014K
SAT971J

AT-206
[EURO-OBD]
DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)
Diagnostic Procedure
ECS007PY
1. INSPECTION START (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch “ON” and select “SELF DIAGNOSIS” mode for A/T with CONSULT-II.
2. Touch “ERASE”.
>> GO TO 2
2. CHECK DTC
Perform AT-205, "
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE" .
See above.
>> GO TO 3
3. CHECK DTC AGAIN
Is the “CONTROL UNIT (RAM) or CONTROL UNIT (ROM)” displayed again?
Ye s o r N o
Ye s > > R e p l a c e T C M .
No >>INSPECTION END

DTC CONTROL UNIT (EEP ROM)
AT-207
[EURO-OBD]
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DTC CONTROL UNIT (EEP ROM)PFP:31036
DescriptionECS007PZ
The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
ON BOARD DIAGNOSIS LOGIC
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted,
always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.
With CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for
A/T with CONSULT-II.
2. Start engine.
3. Run engine for at least 2 seconds at idle speed.
4. If DTC is detected, go to AT- 2 0 8 , "
Diagnostic Procedure" .
Without CONSULT-II
Follow the procedure “With CONSULT-II”.
SAT574J
Diagnostic trouble code Malfunction is detected when... Check item (Possible cause)
: CONT UNIT (EEP ROM)TCM memory (EEP ROM) is malfunction-
ing.
●TCM
SAT014K
SAT971J

AT-208
[EURO-OBD]
DTC CONTROL UNIT (EEP ROM)
Diagnostic Procedure
ECS007Q0
1. CHECK DTC
With CONSULT-II
1. Turn ignition switch “ON” and select “SELF DIAGNOSIS” mode for A/T with CONSULT-II.
2. Move selector lever to “R” position.
3. Depress accelerator pedal (Full throttle position).
4. Touch “ERASE”.
5. Turn ignition switch “OFF” position for 10 seconds.
Perform AT-207, "
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE" .
Is the
“CONT UNIT (EEP ROM)” displayed again?
Ye s > > R e p l a c e T C M .
No >>INSPECTION END

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-209
[EURO-OBD]
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TROUBLE DIAGNOSES FOR SYMPTOMSPFP:00100
Wiring Diagram — AT — NONDTCECS007Q1
YAT 3 6 4

AT-210
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
YAT 3 6 5

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-211
[EURO-OBD]
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1. O/D OFF Indicator Lamp Does Not Come OnECS007Q2
SYMPTOM:
O/D OFF indicator lamp does not come on for about 2 seconds when turning ignition switch to “ON”.
1.CHECK GROUND CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device terminals 7 and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 2
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
2.CHECK LAMP CIRCUIT
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Disconnect A/T device harness connector.
3. Check voltage between A/T device terminals 8 and ground.
OK or NG
OK >> GO TO 3
NG >> Check the following items:
●Harness for short or open between combination
meter terminals 47 and A/T device terminals 8.
3.CHECK OVERDRIVE CONTROL SWITCH
1. Disconnect A/T device harness connector.
2. Check continuity between A/T device terminals 7 and 8.
OK or NG
OK >>INSPECTION END.
NG >> Repair or replace A/T device.Continuity should exist.
MCIB0007E
Voltage: Battery voltage
MCIB0008E
OVERDRIVE CONTROL SW “ON”: Continuity should not exist.
OVERDRIVE CONTROL SW “OFF”: Continuity should exist.

AT-212
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
2. Engine Cannot Be Started In “P” and “N” Position
ECS007Q3
SYMPTOM:
●Engine cannot be started with selector lever in “P” or “N” position.
●Engine can be started with selector lever in “D”, “2”, “1” or “R” position.
1. CHECK PNP SWITCH CIRCUIT
With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to PNP switch circuit?
Without CONSULT-II
Does self-diagnosis show damage to PNP switch circuit?
Ye s o r N o
Yes >> Check PNP switch circuit. Refer to AT- 2 3 7 , "21. TCM
Self-diagnosis Does Not Activate (PNP & Overdrive
Control Switches, and Throttle Position Sensor Circuit
Checks)" .
No >> GO TO 2
2. CHECK PNP SWITCH INSPECTION
Check for short or open of PNP switch harness connector terminals 1 and 2.
Refer to AT- 2 3 7 , "
21. TCM Self-diagnosis Does Not Activate (PNP &
Overdrive Control Switches, and Throttle Position Sensor Circuit
Checks)" .
OK or NG
OK >> GO TO 3
NG >> Repair or replace PNP switch.
3. CHECK STARTING SYSTEM
Check starting system. Refer to SC-13, "STARTING SYSTEM".
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
SCIA0706E
SAT408JA

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-213
[EURO-OBD]
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3. In “P” Position, Vehicle Moves Forward Or Backward When PushedECS007Q4
SYMPTOM:
Vehicle moves when it is pushed forward or backward with selector lever in “P” position.
1.CHECK PARKING COMPONENTS
Check parking components. Refer to AT- 4 1 3 , "
OVERHAUL" .
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
SAT282F

AT-214
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
4. In “N” Position, Vehicle Moves
ECS007Q5
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
1. CHECK PNP SWITCH CIRCUIT
With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to PNP switch circuit?
Without CONSULT-II
Does self-diagnosis show damage to PNP switch circuit?
Ye s o r N o
Yes >> Check PNP switch circuit. Refer to AT- 2 3 7 , "21. TCM
Self-diagnosis Does Not Activate (PNP & Overdrive
Control Switches, and Throttle Position Sensor Circuit
Checks)" .
No >> GO TO 2
2. CHECK CONTROL CABLE
Check control cable. Refer to AT- 4 0 8 , "
Control Cable Adjustment" .
OK or NG
OK >> GO TO 3
NG >> Adjust control cable. Refer to AT- 4 0 8 , "
Control Cable
Adjustment" .
3. CHECK A/T FLUID LEVEL
Check A/T fluid level again.
OK or NG
OK >> GO TO 4
NG >> Refill ATF.
SCIA0706E
SAT023JB
SAT638A