Combination Meter Circuit
WARNING: This page is about a different car, the 2003 Lexus GS 430, 2003 Lexus GS 300, 2002 Lexus GS 430, and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the combination meter circuit. Disconnect connector "A" and "B" from the combination meter and inspect the connectors on the wire harness side. See CONNECTOR IDENTIFICATION . See INSPECTING COMBINATION METER CIRCUIT table. If the circuit is not as specified, inspect the circuits connected to other parts.
INSPECTING COMBINATION METER CIRCUIT
| Tester Connection (Wire Color) | Condition | Specified Condition |
|---|---|---|
| A1 (Yellow) - Ground | Ignition Switch ON | B+ Voltage |
| A3 (Gray) - A4 (Red) | Constant | Continuity |
| A7 (Pink) - Ground | Light Control Switch HEAD & Headlight Dimmer Switch HI | Continuity |
| A8 (Orange) - Ground & B22 (White/Black) - Ground | Constant | Continuity |
| A10 (Yellow) - Ground | Window Washer Level Warning Switch Float Down | Continuity |
| B1 (Red/Blue) - Ground | Ignition Switch ON | B+ Voltage |
| B4 (Green) - B6 (White/Black) | Constant | Approx. 10 k Ohms |
| B5 (White) - B6 (White/Black) | Turn Light Control Rheostat To Bright Position | Approx. 0 k Ohms |
| B5 (White) - B6 (White/Black) | Turn Light Control Rheostat To Dark Position | Approx. 10 k Ohms |
| B13 (Green/White) - Ground | Constant | B+ Voltage |
| B14 (Blue/Black) - Ground | Constant | B+ Voltage |
| B15 (Red) - Ground | Light Control Switch In HEAD | B+ Voltage |