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 MANUALSJEEP2011COMPASS BASE, 2.4 B, AWD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESCOMMUNICATION - NON-DTC BASED DIAGNOSTICSDIAGNOSIS AND TESTINGNO RESPONSE FROM CCN (CLUSTER)DIAGNOSTIC TEST

2011 Jeep Compass Base, 2.4 B, AWD, Standard

Diagnostic Test

2011 Jeep Compass Base, 2.4 B, AWD, StandardSECTION Diagnostic Test

TEST FOR INTERMITTENT CONDITION
NOTE:
Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.
1. Turn the ignition on.
  NOTE:
  Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
2. With the scan tool, select ECU View.
  NOTE:
  A red "X" will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.
  
  Does the scan tool display a red "X" next to the module?
  
  Yes
  - Go To 2.
  No
  - The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
(A418) (A412) FUSED B(+) CIRCUIT OPEN OR SHORTED

Fig 1: Checking Fused B(+) Circuits Using 12-Volt Test Light Connected To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect all Cluster harness connectors.
3. Using a 12-volt test light connected to ground, check each (A418) and (A412) Fused B(+) circuit.
  Does the test light illuminate brightly for each circuit?
  
  Yes
  - Go To 3.
  No
  - Repair the Fused B(+) circuit for an open or short.
  - Perform the BODY VERIFICATION TEST. Refer to Standard Procedure .
(Z936) (Z937) GROUND CIRCUITS OPEN

Fig 2: Checking Ground Circuits Using 12-Volt Test Light Connected To 12-Volts
Courtesy of CHRYSLER LLC
1. Using a 12-volt test light connected to 12-volts, check each (Z936) and (Z937) ground circuit.
  Does the test light illuminate brightly for each circuit?
  
  Yes
  - Go To 4.
  No
  - Repair the (Z936) or (Z937) ground circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to Standard Procedure .
(F202) IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED

Fig 3: Checking Ignition Switch Output Circuit Using 12-Volt Test Light Connected To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition on.
2. Using a 12-volt test light connected to ground, check the (F202) Ignition Switch Output circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 5.
  No
  - Repair the (F202) Ignition Switch Output circuit for an open or short.
  - Perform the BODY VERIFICATION TEST. Refer to Standard Procedure .
(D55) AND (D54) CAN B BUS CIRCUITS OPEN

Fig 4: Measuring Voltage Between CAN B Bus (-) Circuit & Ground And Between CAN B Bus (+) Circuit & Ground
Courtesy of CHRYSLER LLC

RENDER: 1.0x

NO RELATED

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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.