Hi,
No problem whatsoever. That is certainly a different code. LOL However, the battery isn't the issue.
The engine control module (ECM) has 2 internal 5 V reference circuits. Each internal reference circuit provides a 5 V reference for more than one sensor. The code indicates there is a short to either ground or voltage on one of the 5 V reference circuits.
So, what needs to be done is to first identify the 5v references at the ECM/PCM. Confirm there is a 5v reference from them. If there is, then you will need to check each of the sensors that the ECM sends the power to for a short. Either it will have power or it won't.
I have attached the diagnostics below and the powertrain management wiring schematics below. Additionally, I attached a pinout of the connector.
I also highlighted the relevant wiring and what needs to be checked and the pinout information for the ECM.
Let me know if this helps or if you have other questions. Also, let me know if you are experiencing any symptoms other than the light. It may help me narrow things down.
Take care,
Joe
See pics below.
Images (Click to make bigger)
Monday, September 4th, 2023 AT 8:24 PM