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Symptom: P1605-TERMINAL 15 PLAUSIBILITY AFTER START UP When Monitored and Set Condition: P1605-TERMINAL 15 PLAUSIBILITY AFTER START UP When Monitored: During power-up and in after-run mode. Set Condition: The switched ignition voltage at ECM cavity C1-47 drops to 0 volt and battery voltage is present at an ECM cavity other than cavities C1-33 and C1-45. NOTE: 9Terminal 159 refers to the internal terminal on the Bosch controller and not to the actual switched ignition cavity (cavity C1-47) in the ECM harness connector. POSSIBLE CAUSES INTERMITTENT CONDITION ASD/DIESEL POWER RELAY ENGINE CONTROL MODULE ECM CIRCUIT SHORTED TO VOLTAGE ASD RELAY OUTPUT CIRCUIT SHORTED TO VOLTAGE ASD RELAY CONTROL CIRCUIT SHORTED TO GROUND TEST ACTION APPLICABILITY 1 Turn the ignition on. All Yes → No → 2 Turn the ignition off. All Yes → No → Replace and program the Engine Control Module in accordance 168 DRIVEABILITY - DIESEL |