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DTC P0600 A/T COMMUNICATION LINE EC-1591 [VG33ER] C D E F G H I J K L M A EC Diagnostic Procedure UBS00DZL 1. CHECK A/T CONTROL INPUT SIGNAL CIRCUIT FOR OPEN 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector and TCM (Transmission 3. Check harness continuity between ECM terminal 26 and TCM OK or NG OK >> GO TO 3. NG >> GO TO 2. 2. DETECT MALFUNCTIONING PART Check the following. ● Harness connectors M58, F28 ● Harness for open or short between ECM and TCM (Transmission Control Module) >> Repair open circuit or short to ground or short to power in harness or connectors. 3. CHECK A/T CONTROL INPUT SIGNAL CIRCUIT FOR SHORT 1. Check harness continuity between ECM terminal 26 and ground, ECM terminal 27 and ground, ECM ter- 2. Also check harness for short to power. OK or NG OK >> GO TO 5. NG >> GO TO 4. TER- MINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage) 68 W/G A/T signal [Engine is running] ● Idle speed Approximately 0 - 5.0V LEC106A Continuity should exist. AEC655A Continuity should not exist. |