FixVault

Light Failure Sensor Circuit

Disconnect the connector from the sensor and inspect the connector on the wiring harness side. See CONNECTOR IDENTIFICATION . See INSPECTING LIGHT FAILURE SENSOR CIRCUIT  table. if the circuit is not as specified, inspect the circuits connected to other parts.

INSPECTING LIGHT FAILURE SENSOR CIRCUIT

Tester Connection Condition Specified Condition
1 - Ground Constant Continuity (1)
2 - Ground Constant Continuity (1)
3 - Ground Taillight ON B+ Voltage
5 - Ground (Europe) Ignition Switch ON B+ Voltage
9 - Ground Constant Continuity (1)
11 - Ground Constant Continuity
3 - Ground Taillight Or Headlight OFF No Voltage
3 - Ground Taillight Or Headlight ON B+ Voltage
4 - Ground Ignition Switch LOCK Or ACC No Voltage
4 - Ground Ignition Switch ON B+ Voltage
7 - Ground Stop Light Switch OFF No Voltage
7 - Ground Stop Light Switch ON B+ Voltage
8 - Ground Ignition Switch LOCK Or ACC No Voltage
8 - Ground Ignition Switch ON B+ Voltage
(1) There is resistance because this circuit is grounded through the bulb.