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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1368 ((Comfort Seats & Wheel Module (CSWM) - Electrical Diagnostics)) >> DTC Troubleshooting >> B10C4-13-Heated Steering Wheel Control - Circuit Open >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR ANY SERVICE BULLETINS OR MODULE SOFTWARE UPDATES 
    1. Check for any applicable Service Bulletins or Flash updates related to the DTC.

      Are there any applicable Service Bulletins or Flash updates?

      Yes 

      No 

      • Go To  2
  2. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR THE DTC TO RETURN 
    1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    2. For future reference, run and save a vehicle Scan Report and all related recorded data.
    3. With the scan tool, erase all DTCs.
    4. Turn the ignition off for a minimum of 10.0 seconds.
    5. Turn the ignition on.
    6. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
    7. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      • Go To  3

      No 

  3. CHECK THE (C91) HEATED STEERING WHEEL FEED CIRCUIT FOR AN OPEN BETWEEN SCCM AND CSWM 
    WARNING:

    Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

    1. Remove the Driver Airbag in accordance with the Service Information. Refer to AIR BAG, DRIVER, REMOVAL AND INSTALLATION .
    2. Disconnect the SCCM C3 harness connector.
    3. Disconnect the CSWM C4 harness connector.
    4. Measure the resistance of the (C91) Heated Steering Wheel Feed circuit between the SCCM C3 harness connector and the CSWM C4 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  4

      No 

      • Repair the (C91) Heated Steering Wheel Feed circuit for an open.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  4. CHECK THE (C986) HEATED STEERING WHEEL RETURN CIRCUIT FOR AN OPEN BETWEEN SCCM AND CSWM 
    1. Measure the resistance of the (C986) Heated Steering Wheel Return circuit between the SCCM C3 harness connector and the CSWM C4 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  5

      No 

      • Repair the (C986) Heated Steering Wheel Return circuit for an open.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  5. CHECK THE HEATED STEERING WHEEL FOR AN OPEN 
    1. Disconnect the SCCM C6 harness connector.
    2. Thoroughly inspect the wiring harness and connectors between the HSW and the Steering Control Module. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals and repair as necessary.
    3. Measure the resistance between the (C91) Heated Steering Wheel Feed circuit and the (C986) Heated Steering Wheel Return circuit at the SCCM C6 harness connector.

      Is the resistance 1.85 ± 0.2 Ohms?

      Yes 

      • Go To  6

      No 

  6. CHECK THE (C91) HEATED STEERING WHEEL FEED CIRCUIT FOR AN OPEN IN THE SCCM 
    1. Reconnect the SCCM C3 harness connector.
    2. Measure the resistance of the (C91) Heated Steering Wheel Feed circuit between the SCCM C6 component connector and the CSWM C4 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  7

      No 

  7. CHECK THE (C986) HEATED STEERING WHEEL RETURN CIRCUIT FOR AN OPEN IN THE SCCM 
    1. Measure the resistance of the (C986) Heated Steering Wheel Return circuit between the SCCM C6 component connector and the CSWM C4 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  8

      No 

  8. CHECK RELATED HARNESS CONNECTIONS 
    1. Turn the ignition off.
    2. Disconnect all CSWM harness connectors.
    3. Disconnect all related in-line harness connections (if equipped).
    4. Disconnect the related component harness connectors.
    5. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
      • Proper connector installation.
      • Damaged connector locks.
      • Corrosion.
      • Other signs of water intrusion.
      • Weather seal damage (if equipped).
      • Bent terminals.
      • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
      • Terminals that have been pushed back into the connector cavity.
      • Perform a terminal drag test on each connector terminal to verify proper terminal tension.

      Repair any conditions that are found.

    6. Reconnect all CSWM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    7. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    9. With the scan tool, erase DTCs.
    10. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    11. With the scan tool, read CSWM DTCs.

      Did the DTC return?

      Yes 

      No 

      • Repairing the wiring harness or connections corrected the problem.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
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