Headlight Signal Circuit: Procedure
- CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER CONTROL RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
- Disconnect the A33 headlight cleaner control relay connector.
- Disconnect the F14 main body ECU (multiplex network body ECU) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A33-1 (HDLO) - F14-20 (HDLO) Always Below 1 Ω A33-1 (HDLO) - Body ground Always 10 kΩ or higher TEXT IN ILLUSTRATION*1 Front view of wire harness connector
(to Headlight Cleaner Control Relay)*2 Front view of wire harness connector
(to Main Body ECU (Multiplex Network Body ECU))
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 2
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [03/2012 - 07/2012]