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Integration Relay Circuit

Remove integration relay. See COMPONENT LOCATIONS . Using DVOM, check circuit values at appropriate connector terminals of integration relay. See Fig 1 and Fig 2 . Ensure circuit values are as specified. See appropriate INTEGRATION RELAY CIRCUIT VALUES table. If circuit values are as specified, replace integration relay. If circuit values are not as specified, repair circuit as necessary.

INTEGRATION RELAY CIRCUIT VALUES (JUNCTION BLOCK SIDE)

Tester Connection Condition Circuit Value
1 & Ground Constant Battery Voltage
2 & Ground Constant Battery Voltage
4 & Ground All Doors Closed (Except Driver's Door) No Continuity
4 & Ground One Door Open (Except Driver's Door) Continuity
5 & Ground Key Unlock Warning Switch In OFF Position No Continuity
5 & Ground Key Unlock Warning Switch In ON Position Continuity
6 & Ground Driver's Door Closed No Continuity
6 & Ground Driver's Door Open Continuity
7 & Ground Ignition Switch In LOCK Or ACC Position No Voltage
7 & Ground Ignition Switch In ON Position Battery Voltage
8 & Ground Seat Belt Unfastened No Continuity
8 & Ground Seat Belt Fastened Continuity
9 & Ground Ignition Switch In LOCK Or ACC Position No Voltage
9 & Ground Ignition Switch In ON Position Battery Voltage
10 & Ground Constant Continuity
11 & Ground Ignition Switch In LOCK Position No Voltage
11 & Ground Ignition Switch In ACC or ON Position Battery Voltage
INTEGRATION RELAY CIRCUIT VALUES (HARNESS SIDE)

Tester Connection Condition Circuit Value
A1 & Ground Constant Battery Voltage
A3 & Ground Constant Continuity
A5 & Ground Driver's Door Closed No Continuity
A5 & Ground Driver's Door Open Continuity
A6 & Ground Passenger's Door Closed No Continuity
A6 & Ground Passenger's Door Open Continuity
A7 & Ground Passenger's Door Closed No Continuity
A7 & Ground Passenger's Door Open Continuity
A8 & Ground Engine Running Battery Voltage
A9 & Ground Rear Door Closed No Continuity
A9 & Ground Rear Door Open Continuity
A11 & A12 Constant Continuity
A12 & A25 Constant Continuity
A13 & Ground Light Control Switch in AUTO Position No Continuity
A13 & Ground Light Control Switch In OFF, TAIL Or HEAD Position Continuity
A14 & Ground Light Control Switch Off No Continuity
A14 & Ground Light Control Switch In HI Or FLASH Position Continuity
A15 & Ground Trunk Compartment Closed No Continuity
A15 & Ground Trunk Compartment Open Continuity
A16 & Ground Door Lock Manual Switch Off Or Unlocked No Continuity
A16 & Ground Door Lock Manual Switch Locked Continuity
A17 & Ground Door Lock Manual Switch Off Or Unlocked No Continuity
A17 & Ground Door Lock Manual Switch Unlocked Continuity
A18 & Ground Driver's & Passenger's Door Key Lock/Unlock Switch Off Or Unlocked No Continuity
A18 & Ground Driver's & Passenger's Door Key Lock/Unlock Switch Locked Continuity
A19 & Ground Driver's Door Key Lock/Unlock Switch Off Or Locked No Continuity
A19 & Ground Driver's Door Key Lock/Unlock Switch Unlocked Continuity
A20 & Ground Passenger's Door Key Lock/Unlock Switch Off Or Locked No Continuity
A20 & Ground Passenger's Door Key Lock/Unlock Switch Unlocked Continuity
A22 & Ground Parking Brake Switch Off No Continuity
A22 & Ground Parking Brake Switch On Continuity
A24 & Ground Brake Fluid Level Float Up No Continuity
A24 & Ground Brake Fluid Level Float Down Continuity
B2 & Ground Light Control Switch Off No Continuity
B2 & Ground Light Control Switch In TAIL Or HEAD Position Continuity
B5 & Ground Light Control Switch Off Or In TAIL Position Continuity
B5 & Ground Light Control Switch In HEAD Position Continuity
Fig 1: Identifying Integration Relay Junction Block Terminals
G98F10640Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Identifying Integration Relay Harness Connector Terminals
G00032469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002