*HOOD AJAR CIRCUIT OPEN - EXPORT ONLY
For a complete wiring diagram Refer to Section 8W.
Theory of Operation
The scan tool will display the door state NOT the switch state. It will display as True/False. True states that the door is ajar (open). False states that the door is NOT ajar (closed).
| Possible Causes |
| HOOD AJAR SWITCH GROUND CIRCUIT OPEN |
| (G70) HOOD AJAR SWITCH SENSE CIRCUIT OPEN |
| FLIP-UP GLASS AJAR SWITCH |
| BODY CONTROL MODULE |
Diagnostic Test
1. FLIP-UP GLASS AJAR FUNCTIONAL TESTOpen the Hood.
With the scan tool in Data Display, read the FLIP-UP AJAR SW state.
Does the scan tool display TRUE?
Yes
- The condition that caused this symptom is currently not present. Inspect the related wiring harness for a possible intermittent condition. Look for any chafed, pierced, pinched or partially broken wires.
No
- Go To2
2. OPEN HOOD AJAR SWITCH GROUND CIRCUIT
Disconnect the Hood Ajar switch connector.
Using a 12-volt Test Light connected to 12-volts, test the Ground circuit.
Does the test light illuminate brightly?
Yes
- Go To3
No
- Repair the Ground circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
3. CHECK FOR OPEN HOOD AJAR SWITCH
With the scan tool in Data Display, read the HOOD AJAR SW state.
Connect a jumper wire between the Sense circuit and the Ground circuit in the Hood Ajar Switch connector.
Does the scan tool display HOOD AJAR SW: TRUE?
Yes
- Replace the Hood Ajar Switch.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go To4
4. CHECK FOR OPEN (G70) HOOD AJAR SWITCH SENSE CIRCUIT
Turn the ignition off.
Leave the jumper wire from the previous step connected.
Disconnect the Body Control Module C1 harness connector.
Measure the resistance between ground and the (G70) Hood Ajar Switch Sense circuit in the BCM C1 connector.
Is the resistance below 5.0 ohms?
Yes
- Replace the Body Control Module in accordance with service information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Repair the (G70) Hood Ajar Switch Sense circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)