TS and CG Terminal Circuit [08/2013 - ]: Procedure

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - TS of DLC3)

Disconnect the c1 power steering ECU assembly connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
c1-6 (TS) - H29-12 (TS)	Always	Below 1 Ω
c1-6 (TS) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)

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

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Standard Resistance

Tester Connection	Condition	Specified Condition
H29-4 (CG) - Body ground	Always	Below 1 Ω

TEXT IN ILLUSTRATION

*a	Front view of DLC3

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part. Refer to PROBLEM SYMPTOMS TABLE [08/2013 - ] .

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK → See step 3

REPLACE POWER STEERING ECU ASSEMBLY. Refer to REMOVAL [08/2013 - ]