Diagnostic Procedure

Perform the self-diagnosis check. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

Is any malfunction of the "U1000 CAN COMM CIRCUIT" indicated? 

YES: Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE ".

No: GO TO  2.

With CONSULT-III 

1. Turn ignition switch ON. (Do not start engine.)
2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
3. Read out ON/OFF switching action of the "MMODE", "NON M-MODE", "UPLVR", "DOWNLVR".
   UP AND DOWNLVR DISPLAY VALUE
   
   

   Item name	Condition	Display value
   MMODE	Manual shift gate position (neutral)	ON
   	Other than the above	OFF
   NON MMODE	Manual shift gate position (neutral, +side, -side)	OFF
   	Other than the above	ON
   UPLVR	Selector lever: + side	ON
   	Other than the above	OFF
   DOWNLVR	Selector lever: - side	ON
   	Other than the above	OFF

Without CONSULT-III 

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 ← → 6th gear).

OK or NG 

OK: GO TO  7.

NG: GO TO  3.

Check manual mode switch. Refer to "COMPONENT INSPECTION ".

OK or NG 

OK: GO TO  4.

NG: Repair or replace damaged parts.

Perform self-diagnosis check. Refer to "CONSULT-IIIFUNCTION (METER A/C AMP) ".

Is any malfunction detected by self-diagnosis? 

YES: Check the malfunctioning system.

No: GO TO  5.

Perform self-diagnosis check. Refer to "SELF-DIAGNOSIS MODE OF COMBINATION METER ".

Is any malfunction detected by self-diagnosis? 

YES: Check the malfunctioning system.

No: GO TO  6.

1. Turn ignition switch OFF.
2. Disconnect CVT device connector and unified meter and A/C amp connector.
3. Check continuity between CVT device harness connector terminals and unified meter and A/C amp harness connector terminals.
   MANUAL MODE SWITCH CIRCUIT
   
   

   Item	Connector	Terminal	Continuity
   CVT device harness connector	M34	3	Yes
   Unified meter and A/C amp harness connector	M49	3
   CVT device harness connector	M34	7	Yes
   Unified meter and A/C amp harness connector	M49	14
   CVT device harness connector	M34	8	Yes
   Unified meter and A/C amp harness connector	M49	4
   CVT device harness connector	M34	12	Yes
   Unified meter and A/C amp harness connector	M49	13

   Fig 1: Checking Continuity Between CVT And Unified Meter And A/C Amp Harness Connector Terminals

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between CVT device harness connector terminal and ground.
   CVT DEVICE HARNESS CONNECTOR TERMINAL AND GROUND
   
   

   Item	Connector	Terminal	Continuity
   CVT device harness connector	M34	11	Yes

   Fig 2: Checking Continuity Between CVT Device Harness Connector Terminal And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. If OK, check harness for short to ground and short to power.
6. Reinstall any part removed.

OK or NG 

OK: GO TO  7.

NG: Repair open circuit or short to ground or short to power in harness or connectors.

Perform "DTC Confirmation Procedure". Refer to "DTC CONFIRMATION PROCEDURE ".

OK or NG 

OK: INSPECTION END 

NG: GO TO  8.

1. Check TCM input/output signals. Refer to "TCM INPUT/OUTPUT SIGNAL REFERENCE VALUES ".
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.

OK or NG 

OK: INSPECTION END 

NG: Repair or replace damaged parts.