Double Lock Mechanism

CONNECTOR CONSTRUCTION: Up to 1995 models
The connector of the SRS air bag control unit (SRS-ECU) has a double lock mechanism, fit verification mechanism and connector shorting mechanism.

DOUBLE LOCK MECHANISM:
The mechanism is composed of two mechanisms: each connector of the SRS-ECU is locked to the connector of the harness, then these connectors (of the four harnesses) are locked with the secondary lock lever mounted on the connector of the SRS-ECU side. The secondary lock lever locking is done as the lock spring fits in the notch of the connector. The operating principle is described below.

When Connectors Are To Be Fitted:
1. The SRS-ECU and harness side connectors are connected. (Primary lock)
2. The secondary lock lever mounted to the SRS-ECU side connector, is manually pressed down until a click is heard indicating that the connectors have been locked. (Secondary lock) If the harness and SRS-ECU connectors do not properly fit, the secondary lock lever side projection and the harness side connector projection interfere with each other, making it impossible to lock the connectors.

When Connectors Are Unlocked:
1. Press in the lock spring with a flat tip (-) screwdriver to disengage the lock spring from the notch area of the connector, and release the lock (secondary lock) of the secondary lock lever.

Caution:
Forced removal of the connector without releasing the secondary lock lever will result in a damaged lock lever.

2. Press the primary lock of each of the harness side connectors and remove the harness side connector.