Diagnostic Test

CHECK FOR ACTIVE DTC
NOTE: Verify that Fuse #34 is installed in the Junction Block.
1. With the scan tool, read the active DTCs.
2. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 90 seconds.
3. With the scan tool, read the active DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 2
  No
  - If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
FRONT CONTROL MODULE (FCM)

Fig 1: Checking Fused Ignition Switch Output (Run-Start) Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the IPM C2 harness connector.
3. Turn the ignition on.
4. Using a volt meter, measure for voltage on the (F20) Fused Ignition Switch Output (Run-Start) circuit at the IPM C2 harness connector.
  Is current battery voltage present?
  
  Yes
  - Replace the Front Control Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Go to step 3
(A106) FUSED B+ CIRCUIT

Fig 2: Checking Fused B+ Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Ignition Switch harness connector.
3. Using a 12-voly test light connected to ground, check for voltage on the (A106) Fused B+ circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go to step 4
  No
  - Go to step 5
(F20) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN

Fig 3: Checking Fused Ignition Switch Output (Run-Start) Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (F20) Fused Ignition Switch Output (Run-Start) circuit between the IPM C2 and Ignition Switch harness connectors.
  Is the resistance above 10.0 Ohms?
  
  Yes
  - Repair the (F20) Fused Ignition Switch Output (Run-Start) circuit for an open.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Replace the Ignition Switch in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
(F20) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT AND (A106) FUSED B+ CIRCUIT

Fig 4: Checking Fused Ignition Switch Output (Run-Start) Circuit
Courtesy of CHRYSLER LLC
1. Using an ohmmeter, measure for a short to ground on the (F20) Fused Ignition Switch Output (Run-Start) circuit and the (A106) Fused B+ circuit.
  Is the resistance below 10K Ohms on either the (F20) or (A106) circuits?
  
  Yes
  - Repair the appropriate circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Repair the (A106) Fused B+ circuit for an open.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .