X30 - Cooling Fan Always On: Disconnect CCRM and Check Fan
NOTE: For proper results of this test step, a "pass" Diagnostic Trouble Code (DTC) 111 must have been received during EEC-IV Self-Test.
- Accessories "OFF" (A/C, etc.)
- Key "ON", verify "cooling fan always on" symptom.
- Key "OFF".
- Disconnect Constant Control Relay Module (CCRM).
- Key "ON", engine "OFF".
- Is cooling fan still on?
Yes -- Key "OFF". Go to X31. X31 - Check Low Speed Power to Fan Circuit For Short to Power
No -- For vehicles that use R134a A/C refrigerant : Go to X32. X32 - Check Dual Function A/C Pressure Switch
All others: Key "OFF". Replace CCRM. Re-evaluate symptom.