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• When Monitored: • Set Condition: Possible Causes (K232) CABIN HEATER RELAY 2 OUTPUT CIRCUIT OPEN CABIN HEATER RELAY 2 TOTALLY INTEGRATED POWER MODULE (TIPM) Diagnostic Test 1. VERIFY THAT THE DTC IS ACTIVE Turn the ignition on. With the scan tool, erase DTCs. With the scan tool, actuate the Cabin Heater Relay 2. Monitor the scan tool for at least two minutes. With the scan tool, read DTCs. Does the scan tool display active: B10BA–CABIN HEATER 2 CONTROL CIRCUIT OPEN? Yes >> Go To 2 No >> The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, 2. CHECK (K232) CABIN HEATER RELAY 2 CONTROL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the TIPM C1 harness connector. Remove the Cabin Heater Relay 2. Using an ohm meter, measure the resistance of the (K232) Cabin Does the ohm meter read open circuit? Yes >> Repair the (K232) Cabin Heater Relay 2 Control circuit for an open. Perform the BODY VERIFICATION TEST VER 1. (Refer to No >> Go To 3 PM HEATING & AIR CONDITIONING ELECTRICAL DIAGNOSTICS 24 - 33 |