Diagnostic Procedure
- CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to "SELF-DIAGNOSTIC RESULT MODE ", "DIAGNOSTIC PROCEDURE WITHOUT CONSULT-III ".
Is malfunction in the CAN communication indicated in the result?
Yes: Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE ".
NO: GO TO 2.
- CHECK INPUT SIGNAL
With CONSULT-III
- Start engine.
- Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-III.
- Drive vehicle and read out the value of "VHCL/S SE-MTR".CONSULT-III REFERENCE CHART
Item name Condition Display value VHCL/S SE-MTR During driving Approximately matches the speedometer reading.
OK or NG
OK: GO TO 4.
NG: GO TO 3.
- CHECK UNIFIED METER AND A/C AMP
Check unified meter and A/C amp. Refer to "UNIFIED METER AND A/C AMP ".
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.