Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSJEEP2009COMPASS SPORT, 2.4 B, ED3, AWD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTSEATS(CABIN COMPARTMENT NODE (CCN) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGC146B-AWD SWITCH STUCKDIAGNOSTIC TEST

2009 Jeep Compass Sport, 2.4 B, ED3, AWD, Standard

Diagnostic Test

2009 Jeep Compass Sport, 2.4 B, ED3, AWD, StandardSECTION Diagnostic Test

C146B DTC IS ACTIVE
NOTE: If any other DTCs are present they must be repaired before continuing.
1. Turn the ignition off to the lock position
2. With the scan tool, read DTCs in the CCN.
  Is the status Active for this DTC?
  
  Yes
  - Go to step 2
  No
  - Go to step 3
TRANSFER CASE SELECTOR SWITCH

Fig 1: Checking Transfer Case Selector Switch
Courtesy of CHRYSLER LLC
1. Turn the ignition off to the lock position
2. Disconnect the Transfer Case Selector Switch.
3. Ignition on, engine not running.
4. With the scan tool, read the Transfer Case Selector Switch Voltage in the CCN.
5. The switch voltage should be approximately 0.0 volts.
6. Turn the ignition off to the lock position
7. Connect a jumper wire between the (K77) Transfer Case Position Sensor Input circuit and the (Z940) Ground circuit in the Transfer Case Selector Switch connector.
8. Ignition on, engine not running.
9. With the scan tool, read the Transfer Case Selector Switch Voltage in the CCN.
10. The switch voltage should be approximately 5-volts.
  Does the voltage display as described?
  
  Yes
  - Replace the Transfer Case Selector Switch.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the CCN in accordance with the Service information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
INTERMITTENT WIRING AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
3. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors.
4. Look for the data to change or for the DTC to reset during the wiggle test.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Test complete.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.