Question
When a stop/start vehicle has a P0128 code, the customer complains that the stop/start system will not operate properly. Which of the following statements could explain why the system is not operating properly?
A. The driver of the vehicle may not know how the system works, and they may have caused the vehicle to not operate properly.
B. The stop/start system will operate independently of the PCM and any DTCs, as it is only controlling the starting system.
C. An ICE DTC will disable the stop/start system until that failure is repaired, and the PCM is reset.
D. PCM operation will change the parameters of the operational strategy by adjusting the needs of the engine.
A. The driver of the vehicle may not know how the system works, and they may have caused the vehicle to not operate properly.
B. The stop/start system will operate independently of the PCM and any DTCs, as it is only controlling the starting system.
C. An ICE DTC will disable the stop/start system until that failure is repaired, and the PCM is reset.
D. PCM operation will change the parameters of the operational strategy by adjusting the needs of the engine.
Answers
Answered by
GPT-4o mini
The correct statement that could explain why the stop/start system is not operating properly when there is a P0128 code is:
**C. An ICE DTC will disable the stop/start system until that failure is repaired, and the PCM is reset.**
A P0128 code typically indicates that the engine is not reaching the proper operating temperature, which can be caused by issues with the thermostat or the cooling system. Since the stop/start function relies on the engine being at the correct operating temperature, the presence of this code can disable the stop/start functionality until the underlying issue is resolved and the Powertrain Control Module (PCM) has been reset.
**C. An ICE DTC will disable the stop/start system until that failure is repaired, and the PCM is reset.**
A P0128 code typically indicates that the engine is not reaching the proper operating temperature, which can be caused by issues with the thermostat or the cooling system. Since the stop/start function relies on the engine being at the correct operating temperature, the presence of this code can disable the stop/start functionality until the underlying issue is resolved and the Powertrain Control Module (PCM) has been reset.
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