B181E

B181E-HOOD AJAR INPUT CIRCUIT PERFORMANCE







- When Monitored:
Continuously.

- Set Condition:
When the range of the voltage on the Hood Ajar Switch Sense circuit is other than expected this code will set.





1. 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 B181E-HOOD AJAR INPUT CIRCUIT PERFORMANCE?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. HOOD AJAR SWITCH OPEN
1. Turn the ignition off.
2. Disconnect the Hood Ajar Switch harness connector.
3. Depress the switch plunger and measure the resistance of the Hood Ajar Switch.

Is the resistance approximately 1,000 Ohms?

Yes

- Go To 3

No

- Replace the Hood Ajar Switch.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. (G930) SENSOR GROUND CIRCUIT OPEN




1. Using a 12-volt test light connected to 12-volts, check the (G930) Sensor Ground circuit.

Does the test light illuminate?

Yes

- Go To 4

No

- Repair the open in the (G930) Sensor Ground circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. (G70) HOOD AJAR SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE




1. Disconnect the TIPM C1 harness connector.
2. Turn the ignition on.
3. Measure the voltage between ground and the (G70) Hood Ajar Switch Sense circuit.

Is there any voltage present?

Yes

- Repair the short to voltage in the (G70) Hood Ajar Switch Sense circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 5

5. (G70) HOOD AJAR SWITCH SENSE CIRCUIT SHORTED TO GROUND




1. Turn the ignition off.
2. Measure the resistance between ground and the (G70) Hood Ajar Switch Sense circuit.

Is the resistance below 5.0 Ohms?

Yes

- Repair the short to ground in the (G70) Hood Ajar Switch Sense circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 6

6. (G70) HOOD AJAR SWITCH SENSE CIRCUIT OPEN




1. Turn the ignition off.
2. Measure the resistance of the (G70) Hood Ajar Switch Sense circuit between the TIPM C1 harness connector and the Hood Ajar Switch harness connector.

Is the resistance below 2.0 Ohms?

Yes

- Replace the TIPM.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the open in the (G70) Hood Ajar Switch Sense circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.