POWER DOOR LOCK CONTROL SYSTEM - Door Opening Relay Power Source Circuit

DESCRIPTION

This circuit supplies power to operate the double door lock ECU (door opening relay).

Power Door Lock Control System - Door Opening Relay Power Source Circuit. DOOR LOCK. Lexus IS250 IS220d GSE20 ALE20

1.CHECK WIRE HARNESS (DOUBLE DOOR LOCK ECU - BATTERY AND BODY GROUND)

Disconnect the double door lock ECU (door opening relay) connector.

Measure the resistance according to the value(s) in the table below.

Standard resistance:
Tester Connection
(Symbols) Condition Specified Condition
P34-14 (GND) - Body ground Always Below 1 Ω

Measure the voltage according to the value(s) in the table below.

Standard voltage:
Tester Connection
(Symbols) Condition Specified Condition
P34-1 (+B) - Body ground Always 10 to 14 V
P34-7 (CPUB) - Body ground Always 10 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

LEXUS IS250, IS220d / GSE20 ALE20

Tester Connection (Symbols)	Condition	Specified Condition
P34-14 (GND) - Body ground	Always	Below 1 Ω