2006 INFINITI M35 ground

AT-180
MAIN POWER SUPPLY AND GROUND CIRCUIT
Revision: 2006 January2006 M35/M45
MAIN POWER SUPPLY AND GROUND CIRCUITPFP:00100
Wiring Diagram — AT — MAINNCS001PP
TCWT0349E

MAIN POWER SUPPLY AND GROUND CIRCUIT
AT-181
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Revision: 2006 January2006 M35/M45
TCM terminals and data are reference value. Measured between each terminal and ground.
Diagnostic ProcedureNCS001PQ
1. CHECK TCM POWER SOURCE STEP 1
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector.
3. Check voltage between A/T assembly harness connector termi-
nals and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK TCM POWER SOURCE STEP 2
1. Disconnect A/T assembly harness connector.
2. Turn ignition switch ON. (Do not start engine.)
3. Check voltage between A/T assembly harness connector termi-
nals and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
Terminal Item Condition Data (Approx.)
1Power supply
(Memory back-up)Always Battery voltage
2Power supply
(Memory back-up)Always Battery voltage
5 Ground Always 0V
6 Power supply– Battery voltage
–0V
10 Ground Always 0V
Item Connector Terminal Voltage
TCM F421 - Ground
Battery voltage
2 - Ground
6 - Ground 0V
SCIA2104E
Item Connector Terminal Voltage
TCM F421 - Ground
Battery voltage 2 - Ground
6 - Ground
SCIA2105E

AT-182
MAIN POWER SUPPLY AND GROUND CIRCUIT
Revision: 2006 January2006 M35/M45
3. DETECT MALFUNCTIONING ITEM
Check the following.
Harness for short or open between battery and A/T assembly harness connector terminals 1, 2
Harness for short or open between push-button ignition switch and A/T assembly harness connector ter-
minal 6
10A fuse (No. 34, located in the fuse and fusible link block) and 10A fuse (No. 83, located in the IPDM E/
R)
Push-button ignition switch (Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" )
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector.
3. Check continuity between A/T assembly harness connector ter-
minals and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
5. DETECT MALFUNCTIONING ITEM
Check the following.
The A/T assembly harness connector terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. PERFORM SELF-DIAGNOSIS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" .
OK or NG
OK >>INSPECTION END
NG-1 >> Self-diagnosis does not activate: GO TO 7.
NG-2 >> DTC is displayed: Check the malfunctioning system. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC
RESULT MODE" . Continuity should exist.
SCIA2106E

MAIN POWER SUPPLY AND GROUND CIRCUIT
AT-183
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Revision: 2006 January2006 M35/M45
7. CHECK TERMINAL CORD ASSEMBLY
1. Remove control valve with TCM. Refer to AT-236, "
Control Valve With TCM and A/T Fluid Temperature
Sensor 2" .
2. Disconnect A/T assembly harness connector and TCM connector.
3. Check continuity between A/T assembly harness connector ter-
minals and TCM connector terminals.
4. Check continuity between A/T assembly harness connector ter-
minals and TCM connector terminals.
5. If OK, check harness for short to ground and short to power.
OK or NG
OK >> Replace the control valve with TCM. Refer to AT- 2 3 6 , "Control Valve With TCM and A/T Fluid
Temperature Sensor 2" .
NG >> Replace open circuit or short to ground and short to power in harness or connectors.
Item Connector Terminal Continuity
A/T assembly harness con-
nectorF42 1
Ye s
TCM connector F502 9
A/T assembly harness con-
nectorF42 2
Ye s
TCM connector F502 10
A/T assembly harness con-
nectorF42 6
Ye s
TCM connector F502 4
SCIA5464E
Item Connector Terminal Continuity
A/T assembly harness con-
nectorF42 5
Ye s
TCM connector F504 21
A/T assembly harness con-
nectorF42 10
Ye s
TCM connector F504 22
SCIA5465E

AT-184
CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION CIR-
CUIT
Revision: 2006 January2006 M35/M45
CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION CIR-
CUIT
PFP:18002
CONSULT-II Reference ValueNCS001PR
Diagnostic ProcedureNCS001PS
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "Diagnostic Pro-
cedure without CONSULT-II" .
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 0 5 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK THROTTLE POSITION SIGNAL CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Depress accelerator pedal and read out the value of “CLSD THL
POS” and “W/O THL POS”.
OK or NG
OK >>INSPECTION END
NG >> Check the following. If NG, repair or replace damaged parts.
Perform the self-diagnosis for “ENGINE” with CONSULT-II. Refer to EC-137, "SELF-DIAG
RESULTS MODE" (for VQ35DE engine), EC-850, "SELF-DIAG RESULTS MODE" (for
VK45DE engine).
Open circuit or short to ground or short to power in harness or connectors.
Pin terminals for damage or loose connection with harness connector.
Item name Condition Display value
CLSD THL POSReleased accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THL POSFully depressed accelerator pedal. ON
Released accelerator pedal. OFF
Accelerator Pedal OperationMonitor Item
CLSD THL POS W/O THL POS
Released ON OFF
Fully depressed OFF ON
PCIA0070E

AT-190
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 January2006 M35/M45
TCM terminals and data are reference value. Measured between each terminal and ground.
A/T CHECK Indicator Lamp Does Not Come OnNCS001PZ
SYMPTOM:
A/T CHECK indicator lamp does not come on for about 2 seconds when turning ignition switch to ON.
DIAGNOSTIC PROCEDURE
1. CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 0 5 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK A/T CHECK INDICATOR LAMP CIRCUIT
Check combination meters. Refer to DI-5, "
COMBINATION METERS" .
OK or NG
OK >> GO TO 3
NG >> Repair or replace damaged parts.
3. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT- 1 8 0 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Engine Cannot Be Started in “P” or “N” PositionNCS001Q0
SYMPTOM:
Engine cannot be started with selector lever in “P” or “N” position.
Engine can be started with selector lever in “D”or “R” position.
DIAGNOSTIC PROCEDURE
1. CHECK PNP SWITCH CIRCUIT
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Do the self-diagnostic results indicate PNP switch?
YES >> Check malfunctioning system. Refer to AT- 11 3 , "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
NO >> GO TO 2.
Terminal Item Condition Data (Approx.)
3CAN-H – –
4K-line (CONSULT-II
signal)The terminal is connected to the data link connector for CONSULT- I I. –
7 Back-up lamp relaySelector lever in “R” position. 0V
Selector lever in other positions. Battery voltage
8CAN-L – –

AT-232
A/T SHIFT LOCK SYSTEM
Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNCS001QS
SYMPTOM:
Selector lever cannot be moved from “P” position with key in ON position and brake pedal
applied.
Selector lever can be moved from “P” position with key in ON position and brake pedal released.
1. CHECK SELECTOR LEVER POSITION
Check the selector lever position for damage. Refer to AT- 2 2 8 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 2.
NG >> Adjust control linkage. Refer to AT-227, "
Adjustment of A/T Position" .
2. CHECK POWER SOURCE
1. Turn ignition switch OFF.
2. Disconnect shift lock relay.
3. Check voltage between shift lock relay E35 terminal 2 and
ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.Vo l ta g e
Brake pedal depressed: Battery voltage
Brake pedal released: 0V
SCIA6866E

A/T SHIFT LOCK SYSTEM
AT-233
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Revision: 2006 January2006 M35/M45
3. DETECT MALFUNCTIONING ITEM
Check the following.
Harness for short or open between battery and stop lamp switch harness connector E124 terminal 1
Harness for short or open between stop lamp switch harness connector E124 terminal 2 and shift lock
relay E35 terminal 2
10A fuse [No.20, located in the fuse block (J/B)]
Stop lamp switch
–Check continuity between stop lamp switch harness connector E124 terminals 1 and 2
Check stop lamp switch after adjusting brake pedal — refer to BR-6, "
BRAKE PEDAL" .
ICC brake hold relay. Refer to ACS-68, "ICC Brake Hold Relay" . (With ICC only)
Harness for short or open between battery and ICC brake hold relay E80 terminal 3. Refer to ACS-49,
"DTC 13 STOP LAMP RLY FIX" . (With ICC only)
Harness for short or open between ICC brake hold relay E80 terminal 5 and shift lock relay E35 terminal
2. (With ICC only)
Harness for short or open between ICC sensor integrated unit harness connector E61 terminal 2 and ICC
brake hold relay E80 terminal 2. Refer to ACS-49, "
DTC 13 STOP LAMP RLY FIX" . (With ICC only)
Harness for short or open between ICC brake hold relay E80 terminal 1 and ground. Refer to ACS-49,
"DTC 13 STOP LAMP RLY FIX" . (With ICC only)
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect shift lock relay.
3. Check continuity between shift lock relay E35 terminal 1 and
ground.
CAUTION:
Connect test probe (BLACK) to shift lock relay, and test
probe (RED) to ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
SCIA4990E
Continuity should exist.
SCIA6931E