Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Check the condition of each related circuit connector before troubleshooting (see HOW TO PROCEED WITH TROUBLESHOOTING ).

CHECK DLC3 (TC VOLTAGE)

Turn the ignition switch ON.

Measure the voltage of the DLC3.

Standard voltage

VOLTAGE SPECIFICATION

Tester Connection	Specified Condition
E13-13 (TC) - E13 - 4 (CG)	10 to 14 V

Fig 1: Identifying DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 3

OK: Go to next step

CHECK CAN COMMUNICATION SYSTEM

Check if the CAN communication DTC is output (see DTC CHECK / CLEAR ).

Result

RESULT REFERENCE

Result	Proceed to
DTC is not output	A
DTC is output	B

B: REPAIR CIRCUIT INDICATED BY OUTPUT DTC

A: REPLACE 4WD CONTROL ECU

CHECK WIRE HARNESS (DLC3 - ECM AND BODY GROUND)

Turn the ignition switch OFF.
Disconnect the A9 ECM connector.

Measure the resistance of the wire harness side connectors.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
E13-13 (TC) - A9-27 (TC)	Below Ω
E13-13 (TC) - Body Ground	10 kΩ or higher

Fig 2: Checking Wire Harness (DLC3 - ECM And Body Ground)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK WIRE HARNESS (DLC3 - BODY GROUND)

Measure the resistance of the DLC3.