Power Door Lock Relay: Testing and Inspection

Key unlock warning system:
INSPECT INTEGRATION RELAY OPERATION




a. Connect the positive (+) lead from the battery to terminal 1.
b. Connect the negative (-) lead from the battery to terminal 5, 6 and 10.
c. Check the chime sounds.




d. Disconnect the negative (-) lead from the battery to terminal 6.
e. Check that the chime stops sounding.




f. Connect the negative (-) lead from the battery to terminal 6.
g. Disconnect the negative (-) lead from the battery to terminal 5.
h. Check that the chime stops sounding.

If operation is not as specified replace the relay.

INSPECT INTEGRATION RELAY CIRCUIT







a. Remove the relay from the junction block and inspect the connectors on the junction block side.







b. Disconnect the connector from the integration relay and inspect the connectors on the wire harness side.
- If the circuit is as specified, try replacing the relay with a new one.
- If the circuit is not as specified, inspect the circuits connected to other parts.







INSPECT POWER MAIN RELAY CONTINUITY
If continuity is not as specified, replace the relay.

Door lock signal:
INSPECT INTEGRATION RELAY OPERATION

HINT: When the relay circuit is as specified, inspect the door lock signal.




a. Connect the positive (+) lead from the voltmeter to terminal B11 and the negative (-) lead to terminal B25.
b. Set the door lock control switch to LOCK and check that the voltage rises from 0 V to battery positive voltage for approximately 0.2 seconds.




c. Reverse the polarity of the voltmeter leads.
d. Set the door lock control switch to UNLOCK and check that the voltage rises from 0 V to battery positive voltage for approximately 0.2 seconds.
If operation is not as specified, replace the relay.