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Home >> Lexus >> 2006 >> RX 330 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Brakes - Abs With EBD & BD & TRAC & VSC (Diagnostics)) >> DTC C1380/64 Malfunction In Stop Light Relay System >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

Upon receiving the DAC or HAC operating signal from the skid control ECU, the relay contact turns on and the stop light comes on.

DIAGNOSTIC TROUBLE CODE TABLE

DTC No. DTC Detection Condition Trouble Area
C1380/64
  • When the voltage at the IG1 terminal is between 10 V and 14 V and the stop light driving output (STPO) is on, a signal has not been input to the STP terminal for 5 sec. or more.
  • When the voltage at the IG1 terminal is between 10 V and 14 V and stop light driving output (STPO) is off, the input signal at the STP is different from the input signal at the STP2 for 5 sec. or more.
  • Stop light operation relay
  • Stop light operation relay circuit