Step C3

Checking the signal lead




- Ignition off.




- Create a bridge by moving the black lead (SB) and connecting it to the brown/pink lead (BN/P) on the magnetic switch.
- Connect an ohmmeter between item FH and item 31 on the alarm relay base.
The ohmmeter should show approx. 0 ohms.

If the reading is correct:
- Proceed to Remove Bridge.

If the reading deviates:
There is a break in the lead from the hood contact to the engine compartment grounding point or in the lead from the hood contact to the alarm relay base item FH.
- Rectify the fault or renew the lead.
Replace the alarm control module.
Replace the hood contact lead or connector.




- Remove the bridge.




- Connect an ohmmeter between item FH and item 31.
The ohmmeter should read infinity.

If the reading is correct:
- Refer to checking the hood contact.

If the reading deviates:
There is a short to earth in the signal lead between the hood contact and the alarm relay base item FH.
- Rectify the fault or renew the lead.
Replace the alarm control module.
Replace the hood contact lead or connector.