Circuit Testing

NOTE: For circuit testing, see appropriate component test. For further circuit information, see WIRING DIAGRAMS . For instrument cluster connector terminal identification, see IDENTIFYING INSTRUMENT CLUSTER CONNECTOR TERMINALS . See Fig 1 .

IDENTIFYING INSTRUMENT CLUSTER CONNECTOR TERMINALS

Terminal No. (Wire Color) ⁽¹⁾

Function

C1 (Grey 10-Pin) Connector

2 (RED/BLU)

⁽²⁾

3 (RED/YEL)

MIL

6 (LT GRN)

⁽³⁾ O/D OFF Indicator

8 (YEL)

Fuel Level Warning Indicator

9 (YEL/RED)

Fuel Gauge

10 (BLK/YEL)

Air Bag Sensor

C2 (Blue 13-Pin) Connector

1 (RED/GRN)

High Beam Indicator

2 (GRN/BLK)

Left Turn Signal Indicator

3 (BLK)

Rear Window Defogger Indicator

4 (RED/WHT)

Vehicle Speed Sensor Ground

6 (RED/YEL)

Brake Fluid Level Warning Switch

7 (RED/YEL)

Seat Belt Indicator

9 (PPL/WHT)

Vehicle Speed Output

10 (WHT/BLU)

Vehicle Speed Input

11 (WHT/RED)

Lamp Driver Relay Control

12 (WHT/BLK)

Ground

13 (GRN/YEL)

Right Turn Signal Indicator

C3 (White 16-Pin) Connector

1 (WHT/GRN)

Light Control Rheostat Volume

2 (GRN)

"Lights On" Signal

3 (BLK)

Tachometer

8 (RED/BLK)

Outer Ambient Temperature (+)

12 (BLK/WHT)

Bulb Check Relay

13 (RED/GRN)

ECU "B" Fuse

15 (BRN)

Ground

16 (BRN/WHT)

Outer Ambient Temperature (-)

C4 (Brown 13-Pin) Connector

1 (YEL/GRN)

Engine Coolant Temperature (ECT) Gauge

2 (BRN)

Engine Coolant Temperature (ECT) Ground

3 (RED/WHT)

Door Ajar Indicator

5 (BLU/YEL)

DOME Fuse

7 (GRN/RED)

Cruise Control Indicator

10 (BLK/ORG)

IGN Fuse

11 (WHT)

Low Oil Pressure Warning Indicator

13 (YEL)

Charging System Indicator

⁽¹⁾	See Fig 1 . Terminals not listed are not used.

⁽²⁾	ABS, BRAKE and fasten seat belt indicators, and GAUGE fuse.

⁽³⁾

A/T only.

Fig 1: Identifying Instrument Cluster Connectors

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.