Symptoms of a P0602 trouble code include problems driving and shifting, engine stalls, and rough idling. A defective CAN Bus is also sometimes to blame. Additionally, corroded, damaged, or faulty wiring or connectors within the Control Area Network (CAN) Bus harness or a loose or broken wire or ground strap can also cause this code. ![]() ![]() What causes the P0602 code?Ī poor electrical connection or defective driver in the PCM are the most likely causes for this code to be stored. The mechanic should keep in mind that some vehicles require multiple drive cycles, upwards of eight, before the check engine light is lit, though the PCM still stores the code upon first occurrence. What the P0602 code meansĪ P0602 trouble code signifies problems with a control module, in addition to a programming error within the one of the control modules. ![]() When the Powertrain Control Module stores a P0602 trouble code, it usually indicates a programming error in one of the control modules, including the transmission control module, the antilock brake control module, the anti-theft module, the body control module, the climate control module, the cruise control module, the fuel injection control module, the instrument panel control module, proximity alert module, the traction control module, and the turbo control module.
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