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Diagnostic Procedure
NGEC0892
1 CHECK A/T DIAGNOSIS COMMUNICATION LINE INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector and TCM (Transmission Control Module) harness connector.
SEF324V
AEC655A
3. Check harness continuity between ECM terminal 7 and TCM (Transmission Control Module) terminal 15. Refer to Wir-
ing Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK 䊳 GO TO 3.
NG 䊳 GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
쐌 Harness connectors M58, F28
쐌 Harness for open or short between ECM and TCM (Transmission Control Module)
䊳 Repair open circuit or short to ground or short to power in harness or connectors.
3 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-732.
䊳 INSPECTION END
DTC P1605 A/T DIAGNOSIS COMMUNICATION LINE
VG33E
Diagnostic Procedure
EC-1152
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