Diagnostic Procedure

CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

Is a malfunction in the CAN communication indicated in the results?

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

No: GO TO 2.

CHECK MANUAL MODE SWITCH CIRCUIT

With CONSULT-II

Turn ignition switch ON.
Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.

Fig 1: Identifying CONSULT-II Display - ECU INPUT SIGNALS

Courtesy of NISSAN MOTOR CO., U.S.A.

Read out ON/OFF switching action of "MANU MODE SW", "NON M-MODE SW", "UP SW LEVER", "DOWN SW LEVER".

MANUAL MODE SWITCH CIRCUIT

Item name	Condition	Display Value
MANU MODE SW	Manual shift gate position (neutral)	ON
MANU MODE SW	Other than the above	OFF
NON M-MODE SW	Manual shift gate position	OFF
NON M-MODE SW	Other than the above	ON
UP SW LEVER	selector lever: +side	ON
UP SW LEVER	Other than the above	OFF
DOWN SW LEVER	selector lever: -side	ON
DOWN SW LEVER	Other than the above	OFF

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.

DETECT MALFUNCTIONING ITEM
Check the following.
- Manual mode switch. Refer to "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 "COMBINATION METERS ".
  OK or NG
  
  OK: GO TO 4.
  
  NG: Repair or replace damaged parts.
CHECK DTC
Perform "DTC CONFIRMATION PROCEDURE ".

OK or NG

OK: INSPECTION END

NG: GO TO 5.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to "MAIN POWER SUPPLY AND GROUND CIRCUIT ".

OK or NG

OK: GO TO 6.

NG: Repair or replace damaged parts.
DETECT MALFUNCTIONING ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.

OK or NG

OK: Replace the control valve with TCM. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".

NG: Repair or replace damaged parts.