Diagnostic Test

WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
NOTE: Open the hood and ensure the Hood Ajar Switch is connected before proceeding
1. Using the scan tool, record and erase DTCs
2. Close the hood.
3. Cycle the ignition from on to off.
4. Turn the ignition on.
5. Open then close the hood.
6. Using the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 2
  No
  - The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
INCORRECT HOOD AJAR SWITCH INSTALLED
1. Inspect the retainer ring on the hood ajar switch.
2. A dark brown retainer ring identifies the hood ajar switch used for certain export applications, while a white retainer ring identifies the remote starter system application.
  Is the correct switch installed?
  
  Yes
  - Go to step 3
  No
  - Replace the Hood Ajar Switch.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
HOOD AJAR SWITCH
1. Turn the ignition off.
2. Disconnect the Hood Ajar Switch harness connector.
3. Turn the ignition on.
4. Using a scan tool view the Hood Ajar Switch state.
5. Connect a jumper wire across the (G70) Hood Ajar Switch Sense circuit and (Z908) Ground circuit at the Hood Ajar Switch harness connector.
  Did the Hood Ajar Switch state change?
  
  Yes
  - Replace the Hood Ajar Switch.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 4
(Z908) GROUND CIRCUIT OPEN

Fig 1: Checking Ground Circuit Using 12-Volt Test Light Connected To 12-Volts
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Using a 12-volt Test Light connected to 12-volts, check the (Z908) Ground circuit.
  Does the test light illuminate?
  
  Yes
  - Go to step 5
  No
  - Repair the (Z908) Ground circuit for an open.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(G70) HOOD AJAR SWITCH SENSE CIRCUIT SHORT TO VOLTAGE

Fig 2: Measuring Voltage Between Hood Ajar Switch Sense Circuit & Ground
Courtesy of CHRYSLER LLC
1. Disconnect the TIPM C2 harness connector.
2. Turn the ignition on.
3. Measure the voltage between the (G70) Hood Ajar Switch Sense circuit and ground.
  Is there any voltage present?
  
  Yes
  - Repair the (G70) Hood Ajar Switch Sense circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 6
(G70) HOOD AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND

Fig 3: Checking Hood Ajar Switch Sense Circuit For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Measure the resistance between the (G70) Hood Ajar Switch Sense circuit and ground.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (G70) Hood Ajar Switch Sense circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 7
(G70) HOOD AJAR SWITCH SENSE CIRCUIT OPEN

Fig 4: Checking Hood Ajar Switch Sense Circuit For Open
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (G70) Hood Ajar Switch Sense circuit between the TIPM C2 connector and the Hood Ajar Switch connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Repair the (G70) Hood Ajar Switch Sense circuit for an open.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .