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
(Z913) GROUND CIRCUIT OPEN
(F100) FUSED IGNITION RUN CONTROL OUTPUT CIRCUIT OPEN OR SHORTED
(F201) FUSED IGNITION RUN/START CONTROL OUTPUT CIRCUIT OPEN OR SHORTED
(D51) CAN C BUS (-) CIRCUIT OPEN
(D52) CAN C BUS (+) CIRCUIT OPEN
OCCUPANT RESTRAINT CONTROLLER (ORC)

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 (Z913) GROUND CIRCUIT FOR AN OPEN

Fig 1: Measuring Resistance Between Ground And Ground Circuit
Courtesy of CHRYSLER LLC

WARNING:
To avoid possible serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
1. Disconnect the Occupant Restraint Controller Module harness connectors.
2. Connect the SRS Load Tool Adapter (special tool #8443-24, 32-Way Adapter) to the ORC connectors.
3. Measure the resistance between ground and the (Z913) Ground circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 3.
  No
  - Repair the open in the (Z913) Ground circuit.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to Standard Procedure .
CHECK THE (F100) FUSED IGNITION RUN CONTROL OUTPUT CIRCUIT FOR AN OPEN OR SHORT

Fig 2: Check Fused Ignition Run Control Output Circuit For Open
Courtesy of CHRYSLER LLC

NOTE:
Check the TIPM for any ignition related DTCs before proceeding. If set. Refer to DIAGNOSIS AND TESTING .

WARNING:
Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Using a 12-volt test light connected to ground, check the (F100) Fused Ignition Run Control Output circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 4.
  No
  - Repair the open or short in the (F100) Fused Ignition Run Control Output circuit.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to Standard Procedure .
CHECK THE (F201) 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. Using a 12-volt test light connected to ground, check the (F201) 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 (F201) Fused Ignition Run/Start Control Output circuit.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to Standard Procedure .
CHECK THE (D52) AND (D51) CAN C BUS CIRCUITS FOR AN OPEN

Fig 4: Measuring Resistance Of CAN C Bus (+) Circuit Between The TIPM Harness Connector And Occupant Restraint Controller C1 harness
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C7 harness connector.
3. Measure the resistance of the (D52) CAN C Bus (+) circuit between the TIPM C7 harness connector and the Occupant Restraint Controller C1 harness connector.
4. Measure the resistance of the (D51) CAN C Bus (-) circuit between the TIPM C7 harness connector and the Occupant Restraint Controller C1 harness connector.
  Are the resistances below 5.0 Ohms?
  
  Yes
  - Replace the Occupant Restraint Controller Module in accordance with the Service Information. Refer to CONTROLLER, Occupant Restraint , Removal .
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to Standard Procedure .
  No
  - Repair the open in the (D52) or (D51) CAN C Bus circuit.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to Standard Procedure .