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. (Do not start engine.)
Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
Read out ON/OFF switching action of "MANU MODE SW""NON M-MODE SW""UP SW LEVER""DOWN SW LEVER".

MANUAL MODE SWITCH CONDITION - DISPLAY VALUE

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

Fig 1: Identifying CONSULT II DATA MONITOR Display

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

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". Refer to "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 the following.
- The 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.