DTC 12


DTC 12	Passenger-side pre-tensioner seat belt system
DETECTION CONDITION	Warning • Detection conditions are for understanding DTC outline before performing inspection. Performing inspection with only detection conditions may cause injury due to operating error or damage the system. When performing inspection, always follow inspection procedure. • Resistance detected between terminals 3I and 3K of SAS unit is other than 1.83-2.81W. • Short circuit in wiring harness related terminal 3I or 3K of SAS unit
POSSIBLE CAUSE	• Drive-side pre-tensioner seat belt malfunction • Malfunction of connectors between passenger-side pre-tensioner seat belt and SAS unit • Open or short circuit in wiring harness between passenger-side pre-tensioner seat belt and SAS unit • SAS unit malfunction


STEP	INSPECTION		ACTION
1	Is vehicle equipped with pre-tensioner seat belt?	Yes	Go to next step.
1	Is vehicle equipped with pre-tensioner seat belt?	No	Replace SAS unit. (See SAS UNIT REMOVAL/INSTALLATION.)
2	INSPECT OF PASSENGER-SIDE PRE-TENSIONER SEAT BELT CONNECTOR Warning • Handling air bag system components improperly can accidentally deploy air bag modules and pre-tensioner seat belts, which may seriously injure you. Read AIR BAG SYSTEM SERVICE WARNINGS before handling air bag system components. See SERVICE WARNINGS. • Turn ignition switch to LOCK position. • Disconnect negative battery cable and wait for more than 1 minute. • Remove passenger-side B-pillar lower trim. • Disconnect passenger-side pre-tensioner seat belt connector. • Is there cracking or chipping in passenger-side pre-tensioner seat belt connector?	Yes	Replace wiring harness.
2		No	Present malfunction diagnosis: • Go to next step. Past malfunction diagnosis: • Go to Step 4.
3	VERIFY WHETHER MALFUNCTION IS IN PASSENGER-SIDE PRE-TENSIONER SEAT BELT OR OTHER PARTS • Connect leads of SST (Fuel And Thermometer checker) or apply 2 W resistor to terminals A and B of passenger-side pre-tensioner seat belt connector. • Set resistance of SST (Fuel And Thermometer checker) to 2 W. • Connect negative battery cable. • Turn ignition switch to ON position. • Is DTC 7 indicated?	Yes	Go to next step.
3		No	Replace passenger-side pre-tensioner seat belt. (See FRONT SEAT BELT REMOVAL/INSTALLATION.)
4	INSPECT WIRING HARNESS BETWEEN PASSENEGER-SIDE PRE-TENSIONER SEAT BELT AND SAS UNIT • Turn ignition switch to LOCK position. • Disconnect negative battery cable and wait for more than 1 minute. • Remove clock spring. (See CLOCK SPRING REMOVAL/INSTALLATION.) • Remove glove compartment. • Disconnect passenger-side air bag module connector. • Disconnect driver and passenger-side side air bag module connectors. (Vehicle with side air bag) • Remove passenger-side B-pillar lower trim. (Vehicle with pre-tensioner seat belt) • Disconnect passenger-side pre-tensioner seat belt connector. (Vehicle with pre- tensioner seat belt) • Turn up floor covering. • Disconnect all SAS unit connectors. • Inspect wiring harness between terminal 3I of SAS unit connector and terminal A of passenger-side pre-tensioner seat belt connector, and between terminal 3K of SAS unit connector and terminal B of passenger-side pre-tensioner seat belt connector for following. - Short to ground - Short to power supply - Open circuit • Are wiring harnesses okay?	Yes	Present malfunction diagnosis: • Replace SAS unit. (See SAS UNIT REMOVAL/INSTALLATION.) Past malfunction diagnosis: • Replace passenger-side pre-tensioner seat belt. (See FRONT SEAT BELT REMOVAL/INSTALLATION.)
4		No	Replace wiring harness.