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Symptom: U0101-NO BUS MESSAGE FROM TRANS CONTROL MODULE When Monitored and Set Condition: U0101-NO BUS MESSAGE FROM TRANS CONTROL MODULE When Monitored: Equipped with automatic transmission. The ignition on. Battery voltage greater than 10 volts. Set Condition: An open circuit on the (F11) Fused Igniton Switch Output circuit. No bus messages from the TCM for 20 seconds, two trips required. POSSIBLE CAUSES DTC RESET PCM FUSED IGNITION SWITCH OUTPUT CIRCUIT PCI BUS UNABLE TO COMMUNICATE WITH DRBIII t PCM TEST ACTION APPLICABILITY 1 Ignition on, engine not running. t, erase DTCs. Cycle the ignition key on and off several times. Leaving the ignition on for at least 20 t, read DTCs. Does the DTC reset? All Yes → Go To 2 No → Refer to the INTERMITTENT CONDITION Symptom (Diagnos- tic Procedure). 2 Turn the ignition off. All Yes → Go To 3 No → Repair the open or excessive resistance in the (F11) Fused Ignition Switch (Offf, Run, Start) circuit. Inspect the related fuse, 265 DRIVEABILITY - NGC |