No.3 THE ALARM SYSTEM DOES NOT ARM/DISARM - INOPERATIVE FROM BONNET SWITCH


id0902g7807500

POSSIBLE CAUSE

• Circuit

•  Bonnet switch

• Generic electronic module (GEM)

Diagnostic Procedure

STEP

INSPECTION

ACTION

1

DTC INSPECTION

Make sure the bonnet is closed.
Is the DTC displayed?
• B1519
Yes
Go to the next step.
No
Go to Step 4.
2
INSPECT BONNET SWITCH CIRCUIT FOR SHORT TO B+
Disconnect the GEM connector.
Turn the ignition switch to the ON position.
Measure the voltage between GEM connector terminal 1J (harness-side) and ground.
Is there voltage?
Yes
Repair the circuit.
Inspect the system for normal operation.
No
Go to the next step.
3

INSPECT DRIVER-SIDE DOOR KEY CYLINDER CIRCUIT FOR SHORT TO GROUND

Measure the resistance between GEM connector terminal 1J (harness-side) and ground.
Is the resistance less than 5 ohms?
Yes
Go to Step 5.
No
Go to the next step.
4

INSPECT BONNET SWITCH INPUT TO THE GEM

Open the bonnet.
Depress the bonnet switch.
Measure the resistance between GEM connector terminal 1J (harness-side) and ground.
Is the resistance less than 5 ohms when the bonnet switch is depressed?
Yes
Repair the circuit.
Inspect the system for normal operation.
No
Go to the next step.
5

INSPECT BONNET SWITCH

Disconnect the bonnet switch connector.
Measure the resistance between bonnet switch connector terminal B (harness-side) and ground.
Is the resistance less than 5 ohms?
Yes
Install a new bonnet switch.
Inspect the system for normal operation.
No
Repair the circuit.
Inspect the system for normal operation.
6

INSPECT GEM FOR NORMAL OPERATION

Disconnect the all GEM connectors.
Inspect for the following items:
• Corrosion
• Terminal separation
Connect all the connectors and verify that their positions are correct.
Operate the system and inspect for any malfunction.
Is there any malfunction?
Yes
Clear the DTC and perform the DTC inspection.
No
Verify that the system operates normally at this stage. The malfunction may result from loose connectors or corrosion.
Clear the DTC and perform the DTC inspection.