Inspection Procedure

WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - ECM)

Disconnect the A50 connector from the ECM.
Measure the resistance according to the value(s) in the table below.
Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
A50-27 (TC) - E11-13 (TC)	Always	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - ECM)

Fig 1: Identifying Terminals Of A50 ECM Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : Go to next step

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

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

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified condition
E11-4 (CG) - Body ground	Always	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - BODY GROUND)

Fig 2: Identifying Terminals Of CG Of DLC3 Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : Go to next step

CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - BODY GROUND)

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

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
E11-13 (TC) - Body ground	Always	10 kΩ or higher

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU

Fig 3: Identifying Terminals Of TC Of DLC3 Connector

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