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Symptom: ENGINE CAN MESSAGE MISSING When Monitored and Set Condition: ENGINE CAN MESSAGE MISSING When Monitored: CAN Bus circuit error not present, 1 second after ignition on and not in Park or Neutral, no System Overvoltage or System Undervoltage conditions present, or Set Condition: This DTC is set if a CAN ID was not received in the required time, being sent from the Engine Controller. POSSIBLE CAUSES CAN BUS +/- CIRCUIT OPEN CAN BUS CIRCUIT DTC PRESENT ENGINE DTCS PRESENT ECM - ENGINE CAN MESSAGE MISSING TCM - ENGINE CAN MESSAGE MISSING TEST ACTION APPLICABILITY 1 NOTE: Low fluid level can be the cause of many transmission problems. If t, read the engine DTCs. Check and repair all engine DTCs prior to performing transmission symptom diagnostics. t, read and record all Transmission DTCs. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal All Continue 58 TRANSMISSION - NAG1 |