P0A9C Hybrid Battery Temperature Sensor Range/Performance

[beachcowboy]

Experiencing a check engine light due to the hybrid battery temperature sensor range/performance. This is the 48V battery as part of the E-torque system. Keeping the jeep with autostart off, no affect on performance. Dealer wants to replace the module, battery.. everything (over 2k).

Based on testing the conclusion is a failure of a temp sensor internal to the BPCM. Aka replace with part 68381513AA. Main question: is there a way to just replace a piece of the internals? Such as unsolder and solder in new temperature sensor components? Or am I in for the full $1300 part.

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[Scott T in MA]

How did this all pan out? Was your Jeep outside the normal 3yr/36K warranty? I just got some random CELs and the dealer couldn’t find any stored codes. I finally got some codes this week related to the battery temp sensor and one very similar to your code for the hybrid battery but P0C43 (Hybrid Battery Pack Coolant Temperature Sensor Circuit Range Performance) along with P0514 and P0517.