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Power Door Lock Control Relay/Integration Relay Circuit Tests

NOTE: For anti-theft and power door lock ECU circuit testing, see appropriate ANTI-THEFT SYSTEMS article.

Checking pin voltages at power door lock integration control relay or integration relay connectors will help determine if power door lock integration control relay and integration relay are receiving and sending proper signals. Tests may also help determine if there is a short or open in harness or connectors. Measure between ground and specified terminal. See appropriate POWER DOOR LOCK CONTROL & INTEGRATION RELAY TEST table.

Unless stated otherwise in testing procedures, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10 k/ohm input impedance. Voltage readings may vary slightly due to battery condition or charging rate.

POWER DOOR LOCK CONTROL & INTEGRATION RELAY CIRCUIT TEST (1999 CELICA) (1)

Terminal No. (2) Condition Continuity?
2 Passenger Door Courtesy Switch OFF (Door Closed) No
2 Passenger Door Courtesy Switch OFF (Door Open) Yes
5 Passenger's Door Lock Set To LOCK No
5 Passenger's Door Lock Set To UNLOCK Yes
6 Driver Door Lock Set To LOCK No
6 Driver Door Lock Set To UNLOCK Yes
9 Driver Door Lock Set To LOCK No
9 Driver Door Lock Set To UNLOCK Yes
10 Door Lock Control Switch Position UNLOCK No
10 Door Lock Control Switch Position LOCK Yes
11 Door Lock Control Switch Position LOCK No
11 Door Lock Control Switch Position UNLOCK Yes
12 Door Key Lock & Unlock Switch Position UNLOCK No
12 Door Key Lock & Unlock Switch Position LOCK Yes
13 Door Key Lock & Unlock Switch Position LOCK No
13 Door Key Lock & Unlock Switch Position UNLOCK Yes
14 Driver Door Courtesy Switch OFF (Door Closed) No
14 Driver Door Courtesy Switch ON (Door Opened) Yes
15 Constant Yes
16 Constant Yes
7 Ignition Switch Position LOCK Yes
8 Constant B+
1 Ignition Switch Position LOCK Or ACC No Voltage
5 Ignition Switch Position ON B+
(1) See Fig 1.
(2) Connect DVOM between ground and specified relay terminal.
POWER DOOR LOCK CONTROL & INTEGRATION RELAY CIRCUIT TEST (COROLLA) (1)

Terminal No. (2) Condition Continuity?
1 Driver & Passenger Door Lock Control Switch UNLOCK No
1 Driver & Passenger Door Lock Control Switch OFF No
1 Driver & Passenger Door Lock Control Switch LOCK Yes
2 Driver & Passenger Door Lock Control Switch LOCK No
2 Driver & Passenger Door Lock Control Switch OFF No
2 Driver Or Passenger Door Lock Control Switch UNLOCK Yes
3 Driver & Passenger Door Key Lock & Unlock Switch UNLOCK No
3 Driver & Passenger Door Key Lock & Unlock Switch OFF No
3 Driver Or Passenger Door Key Lock & Unlock Switch LOCK Yes
5 Driver Door Key Lock & Unlock Switch LOCK Or OFF No
5 Driver Door Key Lock & Unlock Switch UNLOCK Yes
6 Passenger Door Key Lock & Unlock Switch LOCK No
6 Passenger Door Key Lock & Unlock Switch OFF No
6 Passenger Door Key Lock & Unlock Switch UNLOCK Yes
9 Passenger Door Courtesy Switch OFF (Door Closed) No
9 Passenger Door Courtesy Switch ON (Door Opened) Yes
10 Driver Door Unlock Detection Switch OFF (Door Locked) No
(1) See Fig 2.
(2) Connect DVOM between ground and specified relay terminal.
POWER DOOR LOCK CONTROL & INTEGRATION RELAY CIRCUIT TEST (ECHO) (1)

Terminal No. (2) Condition Continuity?
3 Ignition Switch OFF No Voltage
3 Ignition Switch ON Battery Voltage
5 Driver Door UNLOCK Detection Switch Off (Door Locked) No
5 Driver Door UNLOCK Detection Switch ON (Door Unlocked) Yes
7 Driver & Passenger Door Lock Control Switch UNLOCK Or Off No
7 Driver Or Passenger's Door Lock Control Switch LOCK Yes
8 Driver & Passenger Door Lock Control Switch LOCK Or Off No
8 Driver Or Passenger Door Lock Control Switch UNLOCK Yes
9 Driver Door Lock & UNLOCK Control Switch UNLOCK Or Off No
9 Driver Door Key Lock & Unlock Switch LOCK Yes
9 Front Passenger Door Key Lock & Unlock Switch UNLOCK Or OFF No
9 Front Passenger Door Key Lock & Unlock Switch LOCK Yes
10 Driver Door Key Lock & Unlock Switch LOCK Or OFF No
10 Driver Door Key Lock & Unlock Switch UNLOCK Yes
11 Front Passenger Door Key Lock & Unlock Switch LOCK Or Off No
11 Front Passenger Door Key Lock & Unlock Switch UNLOCK Yes
14 On At All Times Battery Voltage
18 Driver's Door Courtesy Switch OFF No
18 Driver's Door Courtesy Switch ON Yes
19 Front Passenger Door Courtesy Switch OFF No
19 Front Passenger Door Courtesy Switch On Yes
19 Rear Left Side Door Courtesy Switch ON Yes
19 Rear Left Side Door Courtesy Switch OFF No
19 Rear Left Side Door Courtesy Switch ON Yes
25 On At All Times Yes
(1) See Fig 3.
(2) Connect DVOM between ground and specified relay terminal.
Fig 1: Power Door Lock System Control & Integration Relay Connector Terminals (1999 Celica)
G98D12677Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Power Door Lock System Control & Integration Relay Connector Terminals (Corolla)
G98C12676Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Power Door Lock System Control & Integration Relay Connector Terminals (ECHO)
G00024792Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002