Inspection Procedure

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

HINT:

This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.

CHECK FOR DTC (IN VEHICLE STABILITY CONTROL SYSTEM)

Check for DTCs in Vehicle Stability Control System (See DTC CHECK/CLEAR ).

Result

DTC RESULT REFERENCE

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

B: GO TO DTC CHART (See DIAGNOSTIC TROUBLE CODE CHART )

A: Go to Next Step

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - ECM)

Disconnect the A27 connector from the ECM.
Disconnect the A19 connector the ECU.

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

Standard Resistance

RESISTANCE REFERENCE

Tester Connection	Condition	Specified Condition
A19-39 (PSOO) - A27-36 (STV)	Always	Below 1 Ω
A19-39 (PSOO) or A27-36 (STV) - Body ground	Always	10 kΩ or higher

Reconnect the ECM and ECU connector.

Result

DTC RESULT REFERENCE

Result	Proceed to
NG	A
OK (for 2UZ-FE)	B
OK (for 3UR-FE)	C

B: REPLACE ECM (See REMOVAL )

C: REPLACE ECM (See REMOVAL )

Fig 1: Identifying A27 Connector Terminal And A19 Connector Terminal

A: REPAIR OR REPLACE HARNESS OR CONNECTOR