Heating & A/C System: 37

37-ROM CHECKSUM ERROR

For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.

- When Monitored:
With the ignition on.

- Set Condition:
If the calculated checksum does not match the stored value.





NOTE: This DTC must be active for the results of this test to be valid. Do not perform this test if this DTC is stored. Refer to HVAC System Test (MTC) for stored DTC test procedures. HVAC System Test
REPLACE THE A/C HEATER CONTROL

Repair

- Replace the A/C Heater Control.
- Perform the BODY VERIFICATION TEST Body Verification Test.