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Cruise Control System

DTC P1520 STOP LIGHT SWITCH (CRUISE CONTROL SYSTEM) MALFUNCTION

CIRCUIT DESCRIPTION

The HV ECU detects the malfunction of the cruise control system and inhibits the operation of the cruise control.

It detects faulty output of the STP and ST1- signals sent from the stop light switch or an error signal from the brake ECU.

Detecting Condition:




DTC P1520 - Information code 115

Wiring Diagram:






Step 1 - 3:




INSPECTION PROCEDURE