Inspection Procedure

CHECK HARNESS AND LEVEL CONTROL ECU) CONNECTOR (INSTRUMENT PANEL J/B - HEADLIGHT BEAM

Disconnect the 1D connector of instrument panel junction block assembly and the H17 connector of headlight beam level control ECU.
Measure the resistance according to the value(s) in the table below.

Fig 1: Identifying Headlight Beam Level Control ECU Connector Terminals

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Fig 2: Identifying Instrument Panel Junction Block Assembly Connector Terminals (Front Side)

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Resistance

TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

Tester connection	Condition	Specified condition
1D-3 - H17-7	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - HEADLIGHT BEAM LEVEL CONTROL ECU)

Disconnect the connectors from the skid control ECU and the headlight beam level control ECU.
Measure the resistance according to the value(s) in the table below.

Fig 3: Disconnecting Connectors From Skid Control ECU And Headlight Beam Level Control ECU

Resistance

TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

Tester connection	Condition	Specified condition
S40-33 (RRO) - H17-6 (SPDR)	Always	Below 1 Ω
S39-25 (RLO) - H17-5 (SPDL)	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

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