lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Symptom Related Diagnostic Procedures|Page 15470 > < Symptom Related Diagnostic Procedures|Page 15468
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NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE REAR LIGHT ASSEMBLY

13. CHECK REAR JUNCTION BLOCK ECU (STP4 VOLTAGE)

(a) Disconnect the S64 ECU connector.
(b) Measure the voltage according to the value(s) in the table below.

Standard voltage:

NG -- REPLACE LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU)
OK -- Continue to next step.

14. CHECK HARNESS AND CONNECTOR (CENTER STOP LIGHT - REAR JUNCTION BLOCK ECU AND BODY GROUND)

(a) Disconnect the S62 ECU connector.
(b) Disconnect the S20 light connector.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:

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