Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT WASHER SYSTEM
1. Check that the front washer operates.
  OK: Washer function is normal.
NG: GO TO WIPER AND WASHER SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - WINDSHIELD WIPER SWITCH)

Disconnect the A43 distance control ECU connector and H14 windshield wiper switch connector.

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

Standard Resistance

RESISTANCE REFERENCE

Tester Connection	Condition	Specified Condition
A43-3 (WASH) - H14-3 (WF)	Always	Below 1 Ω
H14-3 (WF) - Body ground	Always	10 kΩ or higher

Reconnect the distance control ECU connector and windshield wiper switch connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 1: Identifying A43 Distance Control ECU Connector And H14 Windshield Wiper Switch Connector

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )