Recall 92V135000: Door Lock System ECU Defect

NHTSA CAMPAIGN ID Number: 92V135000
Component: STRUCTURE: DOOR ASSEMBLY:LATCHES AND LOCKS
Manufacturer: TOYOTA MOTOR CO., LTD.

Year: 1989
Make: TOYOTA
Year of Recall: '92
Type of Report: Vehicle
Potential Number of Units Affected: 554910

Summary:
THE ELECTRONIC CONTROL UNIT (ECU) FOR THE POWER DOOR LOCK SYSTEM CAN FAIL, CAUSING THE CONTACTS TO "WELD", AND RESULTING IN DOOR LOCK SOLENOID DAMAGE, WITH FAILURE OF THE DOOR TO LOCK OR UNLOCK, EVEN UNDER MANUAL OPERATION.

IF THE DOOR FAILS TO OPEN AFTER ECU FAILURE, VEHICLE OCCUPANTS WOULD HAVE INCREASED DIFFICULTY EXITING THE VEHICLE IN N EMERGENCY.

INSTALL AN ADDITIONAL SUBCIRCUIT RELAY CONTROL TO PREVENT MALFUNCTION OF ORIGINAL RELAYS IN THE ECU.

SYSTEM: STRUCTURE: POWER DOOR LOCKS.

VEHICLE DESCRIPTION: PASSENGER CARS WITH POWER DOOR LOCKS.