ground INFINITI M35 2006 Factory Workshop Manual

AT-170
DTC P1815 MANUAL MODE SWITCH
Revision: 2006 January2006 M35/M45
TCM terminals and data are reference value. Measured between each terminal and ground.
Diagnostic ProcedureNCS001OZ
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" .
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 MANUAL MODE SWITCH 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. Read out ON/OFF switching action of “MANU MODE SW”,
“NON M-MODE SW”, “UP SW LEVER”, “DOWN SW LEVER”.
Without CONSULT-II
Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of the
position mutually coincide when the selector lever is shifted to the “+ (up)” or “- (down)” side (1st
5th gear).
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING ITEM
Check the following.
Manual mode switch. Refer to AT-171, "Component Inspection" .
Pin terminals for damage or loose connection with harness connector.
Open circuit or short to ground or short to power in harness or connector for A/T device (manual mode
switch).
Unified meter and A/C amp. Refer to DI-5, "COMBINATION METERS" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
Terminal Item Condition Data (Approx.)
3CAN-H – –
8CAN-L – –
9 Starter relaySelector lever in “N”, “P” positions. Battery voltage
Selector lever in “R”, “D” positions. 0V
Item name Condition Display Value
MANU MODE SWManual shift gate position (neutral) ON
Other than the above OFF
NON M-MODE SWManual shift gate position OFF
Other than the above ON
UP SW LEVERSelector lever: +side ON
Other than the above OFF
DOWN SW LEVERSelector lever: -side ON
Other than the above OFF
SCIA4988E

DTC P1815 MANUAL MODE SWITCH
AT-171
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Revision: 2006 January2006 M35/M45
4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT- 1 6 7 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
5. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT-180, "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. DETECT MALFUNCTIONING ITEM
Check the following.
The A/T assembly harness connector pin terminals for damage or loose connection with harness connec-
tor.
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 >> Repair or replace damaged parts.
Component InspectionNCS001P0
MANUAL MODE SWITCH
Check continuity between terminals.
Item Position Connector Terminal Continuity
Manual mode
select switchAuto
M1334 - 5
Ye s Manual 1 - 4
Manual mode
position select
switchUP 3 - 4
DOWN 2 - 4
SCIA6860E

DTC P1841 ATF PRESSURE SWITCH 1
AT-173
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Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNCS001P6
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.
3. Drive vehicle in the “D” position (3rd
4th gear), and confirm
the ON/OFF actuation of the “ATF PRES SW 1”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT-180, "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. DETECT MALFUNCTIONING ITEM
Check the following.
The A/T assembly harness connector pin terminals for damage or loose connection with harness connec-
tor.
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 >> Repair or replace damaged parts.
4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT- 1 7 2 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name Condition Display value
ATF PRES SW 1Front brake engaged. Refer to AT- 2 1
. ON
Front brake disengaged. Refer to AT- 2 1
. OFF
PCIA0067E

DTC P1843 ATF PRESSURE SWITCH 3
AT-175
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Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNCS001PC
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.
3. Drive vehicle in the “D” position (3rd
4th gear), and confirm
the ON/OFF actuation of the “ATF PRES SW 3”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT-180, "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. DETECT MALFUNCTIONING ITEM
Check the following.
The A/T assembly harness connector pin terminals for damage or loose connection with harness connec-
tor.
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 >> Repair or replace damaged parts.
4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT- 1 7 4 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name Condition Display value
ATF PRES SW 3Input clutch engaged. Refer to AT- 2 1
. ON
Input clutch disengaged. Refer to AT- 2 1
. OFF
PCIA0067E

DTC P1845 ATF PRESSURE SWITCH 5
AT-177
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Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNCS001PI
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.
3. Drive vehicle in the “D” position (1st
2nd gear), and confirm
the ON/OFF actuation of the “ATF PRES SW 5”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT-180, "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. DETECT MALFUNCTIONING ITEM
Check the following.
The A/T assembly harness connector pin terminals for damage or loose connection with harness connec-
tor.
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 >> Repair or replace damaged parts.
4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT- 1 7 6 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name Condition Display value
ATF PRES SW 5Direct clutch engaged. Refer to AT- 2 1
. ON
Direct clutch disengaged. Refer to AT- 2 1
. OFF
PCIA0067E

DTC P1846 ATF PRESSURE SWITCH 6
AT-179
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Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNCS001PO
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.
3. Drive vehicle in the “D” position (2nd
3rd gear), and confirm
the ON/OFF actuation of the “ATF PRES SW 6”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT-180, "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. DETECT MALFUNCTIONING ITEM
Check the following.
The A/T assembly harness connector pin terminals for damage or loose connection with harness connec-
tor.
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 >> Repair or replace damaged parts.
4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT- 1 7 8 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name Condition Display value
ATF PRES SW 6High and low reverse clutch engaged.
Refer to AT- 2 1
.ON
High and low reverse clutch disengaged
Refer to AT- 2 1
.OFFPCIA0067E

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