Cool Down Test Set Up Fault
When Monitored:
- When executing the Cool Down Test.
Set Condition:
- This DTC will set if the Blower is not operating at high speed while the Cool Down Test is running.
Possible Causes:
- Check for HVAC DTCs.
- Test set up conditions not met.
- Blower/related circuits.
CAUTION:
Always turn ignition off before disconnecting or connecting any control module connector. Failure to do so could result in damage to control module.
NOTE:
Ensure vehicle being tested has a fully charged battery. If it does not, false DTCs or error messages may occur.
NOTE:
For component location, see appropriate illustration under COMPONENT LOCATIONS
. For terminal identification, see appropriate illustration under CONNECTOR IDENTIFICATION
. For circuit and wire color identification, see WIRING DIAGRAMS
. For component removal and installation procedures, see appropriate component under REMOVAL & INSTALLATION
.
Testing:
- Turn ignition off. Connect DRBIII(R) to DLC. Turn ignition on. Using the DRBIII(R), read HVAC DTCs. Does the DRBIII(R) display any HVAC DTCs? If yes, return to DIAGNOSTIC TROUBLE CODE DEFINITIONS and perform appropriate DTC test. After repair is complete, use DRBIII(R) to erase DTCs. Cycle ignition switch. Start the engine. Turn the Blower Control to high speed. Using the DRBIII(R), actuate the Cool Down Test. Perform BODY VERIFICATION TEST under VERIFICATION TESTS. If no, go to next step.
- Was the Blower Control set to high speed the entire time the Cool Down Test was actuated? If yes, check the Blower Motor and related circuits for Blower operation problems. Repair as necessary. After repair is complete, start the engine. Turn the Blower Control to high speed. Using the DRBIII(R), actuate the Cool Down Test. Perform BODY VERIFICATION TEST under VERIFICATION TESTS. If no, start the engine. Turn the Blower Control to high speed. Using the DRBIII(R), actuate the Cool Down Test. Perform BODY VERIFICATION TEST under VERIFICATION TESTS.