P0688 - ASD Main Sense circuit
P2122 - APP Sensor 1 circuit low
P2127 - APP Sensor 2 Circuit Low
P2138 - APP 1 and 2 Correlation
Okay. You more than likely have a wiring issue. I would take either the APP 1 code and run through it or the P2138 and I am sure you will find the issue. It could be the PCM but again, if it is wiring then you will not fix it with a PCM.
I attached the code detail for these codes. Again, run through the p2122 or the P2138 and I am sure you will find the issue for all of them except for possibly the P0688.
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Tuesday, November 19th, 2019 AT 7:27 PM