NO.2 AIR BAG SYSTEM WARNING LIGHT ILLUMINATES CONSTANTLY

id080300800300

2

Air bag system warning light illuminates constantly.

DETECTION CONDITION

Malfunction in air bag system warning light circuit

POSSIBLE CAUSE

• SAS control module malfunction
• Instrument cluster (circuit board) malfunction
• CAN communication network malfunction

Diagnostic Procedure

• When performing an asterisked (*) troubleshooting inspection, slightly shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunction. If there is a problem, verify that the connectors, terminals and wiring harness are connected correctly and undamaged.

STEP

INSPECTION

ACTION

1
VERIFY DTC IN SAS CONTROL MODULE MEMORY
• Have DTCs been record in the memory?
Yes
Perform inspection using appropriate DTC.
No
Inspect the instrument cluster.
If the instrument cluster is normal, go to the next step.
If the instrument cluster has a malfunction, replace the instrument cluster.
2
INSPECT AIR BAG SYSTEM WARNING LIGHT CIRCUIT IN INSTRUMENT CLUSTER
• Turn the ignition switch to the ON position.
• Does air bag system warning light go out?
Yes
Inspect the connectors and terminals of the SAS control module.
Repair or replace if necessary.
No
Go to the next step.
* 3
INSPECT SAS CONTROL MODULE
• Disconnect the SAS control module connector.
• Turn the ignition switch to the ON position.
• Verify the voltage at terminal 1D.
• Is the voltage B+?
Yes
Replace the SAS control module.
No
Inspect the battery power supply circuit and ground circuit.