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.

CHECK FOR ACTIVE DTC
1. Check all fuses. If any fuses are open, diagnose the appropriate circuit.
2. With the scan tool, read the DTCs.
3. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 10 seconds.
4. With the scan tool, read the 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. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
(F937) CIRCUIT SHORT TO GROUND
1. Remove fuse number 30.
2. With the scan tool, read the DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 3
  No
  - Go to step 4
(F936) CIRCUIT SHORT TO GROUND
1. Remove fuse number 31.
2. With the scan tool, read the DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Replace the TIPM in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go to step 6
HEATED SEATS MODULE SHORTED TO GROUND

Fig 1: Checking Heated Seats Module For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Heated Seats Module harness connector.
3. Reinstall fuse number 30.
4. Turn the ignition on.
5. With the scan tool, read the DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 5
  No
  - Replace the Heated Seats Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
(F937) FUSED IGNITION SWITCH OUTPUT (RUN) SHORTED TO GROUND

Fig 2: Checking Fused Ignition Switch Output (Run) For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C8 harness connector.
3. Measure the resistance between ground and the (F937) Fused Ignition Switch Output (Run) circuit and ground.
  Is the resistance below 10K ohms?
  
  Yes
  - Repair the (F937) Fused Ignition Switch Output (Run) circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Replace the TIPM in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
CABIN HEATER RELAY NUMBER 1 SHORTED TO GROUND

Fig 3: Checking Cabin Heater Relay 1 For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Cabin Heater Relay Number 1 harness connector.
3. Reinstall fuse number 31.
4. Turn the ignition on.
5. With the scan tool, read the DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 7
  No
  - Replace the Cabin Heater Relay Number 1 in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
CABIN HEATER RELAY NUMBER 2 SHORTED TO GROUND

Fig 4: Checking Heater Relay Number 2 For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Cabin Heater Relay Number 2 harness connector.
3. Turn the ignition on.
4. With the scan tool, read the DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 8
  No
  - Replace the Cabin Heater Relay Number 2 in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
(F936) FUSED IGNITION SWITCH OUTPUT (RUN) SHORTED TO GROUND

Fig 5: Checking Fused Ignition Switch Output (Run) Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C11 harness connector.
3. Measure the resistance between ground and the (F936) Fused Ignition Switch Output (Run) circuit and ground.
  Is the resistance below 10K ohms?
  
  Yes
  - Repair the (F936) Fused Ignition Switch Output (Run) circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Replace the TIPM in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure