NO.3 PASSENGER AIR BAG DEACTIVATION (PAD) INDICATOR DOES NOT ILLUMINATE


BHE080301046W04

3

Passenger air bag deactivation (PAD) indicator does not illuminate

DETECTION CONDITION

Malfunction in PAD indicator circuit (open circuit or short to power supply)

POSSIBLE CAUSE

• SAS unit malfunction
• PAD indicator bulb malfunction
• Open or short to power supply circuit in wiring harness between PAD indicator and SAS unit
• Poor contact at terminals 1U 1X and/or 1W of SAS unit connector
• Poor contact in wiring harness between terminal 1X of SAS unit connector and ground
• Poor contact or short circuits in wiring harness between IG KEY 15 A fuse and SAS unit

Diagnostic Procedure

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

STEP

INSPECTION

ACTION

1

VERIFY WHETHER SAS UNIT IS CONNECTED

Warning
• Handling the air bag system components improperly can accidentally deploy the air bag modules and pre-tensioner seat belts, which may seriously injure you. Read the service warnings and cautions before handling the air bag system components.
(See SERVICE WARNINGS.)
(SeeSERVICE CAUTIONS.)
• Turn the ignition switch to the LOCK position.
• Disconnect the negative battery cable and wait for 1 min or more.
• Are all SAS unit connectors securely connected?
Yes
Go to the next step.
No
Reconnect it properly, then go to the Step 6.
2

INSPECT PAD INDICATOR BULB

• Disconnect the negative battery cable.
• Remove the PAD indicator bulb.
• Is the PAD indicator bulb normal?
Yes
Reinstall it properly, then go to the next step.
No
Replace the bulb, then go to the Step 6.
*3

INSPECT THE WIRING HARNESS BETWEEN PAD INDICATOR AND SAS UNIT FOR CONTINUITY

Warning
• Handling the air bag system components improperly can accidentally deploy the air bag modules and pre-tensioner seat belts, which may seriously injure you. Read the service warnings and cautions before handling the air bag system components.
(See SERVICE WARNINGS.)
(SeeSERVICE CAUTIONS.)
• Turn the ignition switch to the LOCK position.
• Disconnect the negative battery cable and wait for 1 min or more.
• Remove the column cover.
• Disconnect the clock spring connector.
• Remove the glove compartment.
• Disconnect the passenger-side air bag module connector.
• Disconnect the driver and passenger-side side air bag module connectors.
• Disconnect the driver and passenger-side curtain air bag module connectors.
• Remove the rear door lower trim.
• Disconnect the driver- and passenger-side pre-tensioner seat belt connectors.
• Partially peel back the floor covering.
• Disconnect all SAS unit connectors.
• Is there continuity between terminal 1U of SAS unit connector and terminal A of PAD indicator?
Yes
Go to the next step.
No
Replace the wiring harness, then go to the Step 6.
*4

INSPECT THE WIRING HARNESS BETWEEN PAD INDICATOR AND SAS UNIT FOR SHORT TO POWER SUPPLY

• Connect the negative battery cable.
• Turn the ignition switch to the ON position.
• Measure the voltage at terminal A of PAD indicator connector.
• Is the voltage 9 V or more?
Yes
Replace the wiring harness, then go to the Step 6.
No
Go to the next step.
5

CHECK TO SEE WHETHER MALFUNCTION IS IN PAD INDICATOR OR SAS UNIT

• Connect the SAS unit connector terminal 1U to body ground.
• Does the PAD indicator illuminate with ignition switch on?
Yes
Replace the SAS unit, then go to the next step.
No
Go to the next step.
6

CONFIRM THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR

• Turn the ignition switch to the LOCK position.
• Disconnect the negative battery cable and wait for 1 min or more.
• Connect all SAS unit connectors.
• Connect the driver and passenger-side pre-tensioner seat belt connectors.
• Connect the driver and passenger-side curtain air bag module connectors.
• Connect the driver and passenger-side side air bag module connectors.
• Connect the passenger-side air bag module connector.
• Connect the clock spring connector.
• Connect the negative battery cable.
• Turn the ignition switch to the ON position.
• Does the PAD indicator operate properly?
Yes
Complete troubleshooting, then explain repairs to customer.
No
Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.