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 "STRDWNSW", "STRUPSW", "NONMMODE", "MMODE".
   ITEM NAME CONDITION CHART
   
   

   Item name	Condition	Display value
   MMODE	When manual mode	ON
   	Other than the above	OFF
   NONMMODE	When manual mode	OFF
   	Other than the above	ON
   STRDWNSW	Steering shift switch: - side	ON
   	Other than the above	OFF
   STRUPSW	Steering shift switch: + 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 steering shift switch and manual mode switch. Refer to "COMPONENT INSPECTION ".

OK or NG 

OK: GO TO 4.

NG: Repair or replace damaged parts.

1. Turn ignition switch OFF.
2. Disconnect spiral cable harness connector and combination meter harness connector.
3. Check continuity between spiral cable harness connector terminals and combination meter harness connector terminals.
   CONTINUITY REFERENCE CHART
   
   

   Item	Connector	Terminal	Continuity
   Spiral cable harness connector	M30	25	Yes
   Combination meter harness connector	M24	38
   Spiral cable harness connector	M30	31	Yes
   Combination meter harness connector	M24	40
   Spiral cable harness connector	M30	33	Yes
   Combination meter harness connector	M24	39

4. If OK, check harness for short to ground and short to power.

OK or NG 

OK: GO TO 5.

NG: Repair or replace damaged harness.

1. Disconnect manual mode select switch harness connector.
2. Check continuity between manual mode select switch harness connector terminals and combination meter harness connector terminals.
   CONTINUITY REFERENCE CHART
   
   

   Item	Connector	Terminal	Continuity
   Manual mode select switch harness connector	M103	1	Yes
   Combination meter harness connector	M24	37
   Manual mode select switch harness connector	M103	2	Yes
   Combination meter harness connector	M24	38

3. Check continuity between manual mode select switch harness connector and ground.
   CONTINUITY REFERENCE CHART
   
   

   Item	Connector	Terminal	Continuity
   Manual mode select switch harness connector	M103	3 - ground	Yes

4. If OK, check harness for short to ground and short to power.

OK or NG 

OK: GO TO 6.

NG: Repair or replace damaged harness.

1. Disconnect spiral cable connector.
2. Check continuity between spiral cable connector terminals.
   CONTINUITY REFERENCE CHART
   
   

   Item	Connector	Terminal	Continuity
   Spiral cable connector	M78	15	Yes
   	M30	33
   	M17	17	Yes
   	M31	31
   	M19	19	Yes
   	M25	25

OK or NG 

OK: GO TO 7.

NG: Replace spiral cable. Refer to "SPIRAL CABLE ".

Check combination meter. Refer to "SELF-DIAGNOSIS MODE OF COMBINATION METER ".

OK or NG? 

YES: GO TO 8.

NO: Replace combination meter. Refer to "REMOVAL AND INSTALLATION ".

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

OK or NG 

OK: INSPECTION END 

NG: GO TO 9.

1. Check TCM input/output signals. Refer to "TERMINALS AND REFERENCE VALUES FOR TCM ".
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.