Diagnostic Test

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

CHECK FOR ACTIVE DTC
1. With the scan tool, read the DTC's.
2. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 10 seconds.
3. With the scan tool, read the DTC's.
  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.
TRANSMISSION RANGE SENSOR

Fig 1: Checking Transmission Range Sensor
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Transmission Range Sensor harness connector.
3. Turn the ignition on, wait 30 seconds.
4. With the scan tool, read TIPM DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Replace the Transmission Range Sensor in accordance with the service information.
  - Perform BODY VERIFICATION TEST VER 1. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go to step 3
ENGINE CONTROL MODULE (DIESEL)
1. Turn the ignition off.
2. Disconnect the Diesel ECM C1 harness connector.
3. Turn the ignition on, wait 30 seconds.
4. With the scan tool, read TIPM DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Replace the ECM in accordance with the service information.
  - Perform BODY VERIFICATION TEST VER 1. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go to step 4
(F962) FUSED IGNITION SWITCH OUTPUT (START) CIRCUIT SHORT TO GROUND

Fig 2: Checking Fused Ignition Switch Output (Start) Circuit For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C5 connector.
3. Measure the resistance between the (F962) Fused Ignition Switch Output (START) circuit and ground.
  Is the resistance below 10K ohms?
  
  Yes
  - Repair the (F962) Fused Ignition Switch Output (START) circuit for a short to ground.
  - Perform BODY VERIFICATION TEST VER 1. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Replace the TIPM in accordance with the service information.
  - Perform BODY VERIFICATION TEST VER 1. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure