Pinpoint Test Ah: Internal Module Failure
- DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition ACCM B11EE:41 A/C Compressor: General Checksum Failure Sets when the ACCM detects an internal fault. ACCM U3000:04 Control Module: System Internal Failures Sets when the ACCM detects an internal fault. ACCM U3000:42 Control Module: General Memory Failure Sets when the ACCM detects an internal fault. ACCM U3000:49 Control Module: Internal Electronic Failure Sets when the ACCM detects an internal fault. HVAC U3000:41 Control Module: General Checksum Failure Sets when the HVAC control module detects an internal fault. HVAC U3000:49 Control Module: Internal Electronic Failure Sets when the HVAC control module detects an internal fault. Possible Sources
- Suspect module
- AH1 INSTALL A NEW SUSPECT MODULE
- Ignition OFF.
- INSTALL a new module in question. REFER to the appropriate Removal and Installation procedure in the Climate Control System article.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS and follow the instructions for the applicable TSB, GSB, SSM or FSA. No The repair is complete.