Stop Light Switch Circuit
WARNING: This page is about a different car, the 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
See DTC P1520/52: STOP LIGHT SWITCH CIRCUIT MALFUNCTION under DIAGNOSTIC TESTS. Disconnect the connector from the switch and inspect the connector on the wiring harness side. See CONNECTOR IDENTIFICATION . See INSPECTING STOP LIGHT SWITCH CIRCUIT table. If the circuit is not as specified, inspect the power source or wiring harness.
INSPECTING STOP LIGHT SWITCH CIRCUIT
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 2 - Ground | Constant | B+ Voltage |