Operation CHARM: Car repair manuals for everyone.

To VIN 428714

UNLOCK RELAY

Terminals:
W1 and W2 are windings.
C1, C2, and C4 are contacts.

The unlock relay has battery voltage applied to terminal C2. When the trigger unit applies voltage to W2, the relay contacts close and voltage is applied to C1 and C4, in turn applying voltage to lock solenoids.

LOCK RELAY

Terminals:
W1 and W2 are windings.
C1, C2, and C4 are contacts.

The lock relay has battery voltage applied to terminal C2. When the trigger unit applies voltage to W2, the relay contacts close and voltage is applied to C1 and C4, in turn applying voltage to lock solenoids.






DRIVER'S DOOR SOLENOID

This solenoid contains a trigger unit. The trigger unit contains:

2 diodes
2 resistors
2 capacitors
2 microswitches

When unlock is selected, microswitches are moved to unlock position. This allows the capacitor to unload through the diode to give a momentary surge of power to the unlock relay coil. This causes the relay contacts to close and supply power to the lock solenoids. After capacitor discharge, the unlock relay will deactivate and return to its normal open position.