Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
1. Turn the ignition on and test drive the vehicle with ESS enabled.
2. With the scan tool, view PCM DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
CHECK THE (G70) HOOD AJAR SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the Hood Ajar Switch (Hood Latch) harness connector.
3. Disconnect the BCM harness connector A.
4. Measure the resistance between ground and the (G70) Hood Ajar Switch Sense circuit at the BCM harness connector A.
  Is the resistance above 10k Ohms?
  
  Yes
  - Go To 3
  No
  - Repair the (G70) Engine Hood Switch Sense Signal circuit for a short to ground.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
CHECK THE (K806) ENGINE HOOD SWITCH 2 SIGNAL CIRCUIT FOR A SHORT TO GROUND
1. Disconnect the PCM C2 harness connector.
2. Measure the resistance between ground and the (K806) Engine Hood Switch 2 Signal circuit at the PCM C2 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the (K806) Engine Hood 2 Signal circuit for a short to ground.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
CHECK THE HOOD AJAR SWITCH
1. Depress the plunger of the hood ajar switch and measure the resistance between the two terminals of the switch.
  Is the resistance approximately 1000 Ohms?
  
  Yes
  - Go To 5
  No
  - Replace the Hood Ajar Switch.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
BODY CONTROL MODULE
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Hood Ajar Switch and the Body Control Module.
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals.
4. Perform any Technical Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Replace the Body Control Module in accordance with the service information.
  - Perform the BCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .