Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

Possible Causes
(A909) (A412) FUSED B(+) CIRCUITS OPEN OR SHORTED
(Z911) GROUND CIRCUITS OPEN
(F943) FUSED IGNITION RUN/START CONTROL OUTPUT CIRCUIT OPEN OR SHORTED
(D264) OR (D265) CAN INTERIOR BUS (125K) CIRCUIT OPEN
CLUSTER (CCN)

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:
  Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
2. With the scan tool, read the module status.
  NOTE:
  Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding.
  
  Does the scan tool indicate that the module is active on the bus?
  
  Yes
  - The no response condition is not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
  No
  - Go To 2.
CHECK THE (A909) AND (A412) FUSED B(+) CIRCUITS FOR AN OPEN OR SHORT

Fig 1: Using 12-volt Test Light Connected To Ground To Check Each And Fused B(+) Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Cluster C1 and C3 harness connectors.
3. Using a 12-volt test light connected to ground, check the (A909) and (A412) Fused B(+) circuit.
  Does the test light illuminate brightly for each circuit?
  
  Yes
  - Go To 3.
  No
  - Repair the open or short in the Fused B(+) circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (Z911) GROUND CIRCUITS FOR AN OPEN

Fig 2: Using 12-volt Test Light Connected To 12-volts To Check Each Ground Circuit
Courtesy of CHRYSLER LLC
1. Disconnect the Cluster C2 harness connector.
2. Using a 12-volt test light connected to 12-volts, check the (Z911) Ground circuits.
  Does the test light illuminate brightly for each circuit?
  
  Yes
  - Go To 4.
  No
  - Repair the open in the (Z911) Ground circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (F943) FUSED IGNITION RUN/START CONTROL OUTPUT CIRCUIT FOR AN OPEN OR SHORT

Fig 3: Using 12-volt Test Light Connected To Ground To Check Fused Ignition Run/start Control Output Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition on.
2. Using a 12-volt test light connected to ground, check the (F943) Fused Ignition Run/Start Control Output circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 5.
  No
  - Repair the open or short in the (F943) Fused Ignition Run/Start Control Output circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN

Fig 4: Measuring Resistance Of CAN Interior Bus (-)/(+) Circuit Between TIPM Harness Connector And Cluster C3 Harness Connector
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Cluster C3 harness connector.
2. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Cluster C3 harness connector.
  Are the resistances below 5.0 Ohms?
  
  Yes
  - Replace the Cluster in accordance with the Service Information. Refer to Removal .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .