TSB : Diagnostic Test

Details

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, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary. CHECK (K232) CABIN HEATER RELAY 2 CONTROL CIRCUIT FOR AN OPEN Fig 1: Checking Cabin Heater Relay 2 Control Circuit For Open Courtesy of CHRYSLER GROUP, LLC 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 Heater Relay 2 Control circuit between the TIPM C1 harness connector, and the Cabin Heater Relay 2 harness connector. 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. Refer to STANDARD PROCEDURE . No Go To 3 TOTALLY INTEGRATED POWER MODULE Fig 2: Totally Integrated Power Module (TIPM) Connector End View Courtesy of CHRYSLER GROUP, LLC Turn the ignition on. With the scan tool, erase DTCs. With the scan tool, actuate the Cabin Heater Relay 2. With the scan tool, read DTCs. Does the scan tool display active: B10BA-CABIN HEATER 2 CONTROL CIRCUIT OPEN? Yes Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE . No Replace the Cabin Heater Relay 2 in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .