Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When replacing the master cylinder solenoid, perform zero point calibration (see CALIBRATION ).

INSPECT DLC3 (BETWEEN DLC3 (TC) AND DLC3 (CG))

Turn the ignition switch to the ON position.

Measure the voltage according to the value(s) in SPECIFICATION CONDITION .

Standard:

SPECIFICATION CONDITION

Tester Connection	Specified Condition
D1-13 (TC) - D1-4 (CG)	10 to 14 V

Fig 1: Identifying DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 4

OK: Go to next step

CHECK DTC (FOR CAN COMMUNICATION SYSTEM) (SEE PRECAUTION )

Check for CAN communication system DTC.

Result:

RESULT REFERENCE

DTC is not output	A
DTC is output	B

B: REPAIR CAN COMMUNICATION SYSTEM ACCORDING TO OUTPUT CODE (SEE DIAGNOSTIC TROUBLE CODE TABLE )

A: Go to next step

CHECK ECM (DLC3 (TC) INPUT)
1. Using SST, connect terminals TC and CG of the DLC3.
  SST 09843-18040
2. Check if the engine warning light is blinking.
  OK: Engine warning light is blinking.
  
  Fig 2: Identifying DLC3 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE ECM (SEE ECM (1GR-FE) , ECM (2UZ-FE) )

OK: REPLACE MASTER CYLINDER SOLENOID (SEE OVERHAUL )

CHECK HARNESS AND CONNECTOR (BETWEEN ECM AND DLC3 (TC)) (See HOW TO PROCEED WITH TROUBLESHOOTING )

Turn the ignition switch off.
Disconnect the ECM connector.

Measure the resistance according to the value(s) in TERMINALS RESISTANCE SPECIFICATION TABLE .

Standard:

TERMINALS RESISTANCE SPECIFICATION TABLE

Tester Connection	Specified Condition
E8-23 (TC) - D1-13 (TC)	Below 1

Fig 3: Disconnecting ECM Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR

OK : Go to next step

CHECK HARNESS AND CONNECTOR (BETWEEN DLC3 (CG) AND BODY GROUND) (see HOW TO PROCEED WITH TROUBLESHOOTING )

Measure the resistance according to the value(s) in TERMINALS RESISTANCE SPECIFICATION TABLE .

Standard:

TERMINALS RESISTANCE SPECIFICATION TABLE

Tester Connection	Specified Condition
D1-4 (CG) - Body ground	Below 1

Fig 4: Identifying DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK ECM (DLC3 (TC) INPUT)

Using SST, connect terminals TC and CG of the DLC3.
SST 09843-18040

Check if the engine warning light is blinking.

Fig 5: Identifying DLC3 Connector Terminals

Result:

RESULT REFERENCE

Engine warning light is blinking	A
Engine warning light is not blinking	B

B: REPAIR OR REPLACE WIRE HARNESS OR ECM (TC AND/OR ECM CIRCUIT)

A: Go to next step

CHECK DTC (FOR CAN COMMUNICATION SYSTEM) (SEE PRECAUTION )

Check for CAN communication system DTC.

Result:

RESULT REFERENCE

DTC is not output	A
DTC is output	B

B: REPAIR CAN COMMUNICATION SYSTEM ACCORDING TO OUTPUT CODE (SEE DIAGNOSTIC TROUBLE CODE TABLE )

A: REPLACE MASTER CYLINDER SOLENOID (SEE OVERHAUL )