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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 476 (CAN COMMUNICATION SYSTEM - DIAGNOSTICS)CIRCUIT INSPECTIONSKID CONTROL ECU COMMUNICATION STOP MODEINSPECTION PROCEDURE

2004 Toyota Matrix XR, FWD, Standard

Inspection Procedure

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

Measure resistance between terminals CANL and CANH of DLC3.

CHECK:

Measure the resistance between terminals CANL and CANH of the DLC3.

Fig 1: Identifying DLC3 Terminals CANH, CANL

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

RESULT:

RESISTANCE MEASURES

Result	Proceed to
54 to 66 Ω	A
1 MΩ or higher	B
Less than 54 Ω	C
108 to 132 Ω	D

B : Go to step 4 .
C : Go to step 7 .
D : Go to step 5 .
A : Go to next step.

Check for short circuit in harness and connector between CANL circuit and +B circuit, and CANH circuit and +B circuit.
CHECK:

Measure the resistance between terminals CANL and BAT of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminals CANH and BAT of the DLC3.

Fig 2: Identifying DLC3 Terminals CANL, CANH, BAT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Go to step 13 .
2. OK : Go to next step.
Check for short circuit in harness and connector between CANL circuit and ground circuit, and CANH circuit and ground circuit.
CHECK:

Measure the resistance between terminals CANL and CG of the DLC3.

OK:

Resistance: 3 kΩ or higher

CHECK:

Measure the resistance between terminals CANH and CG of the DLC3.

Fig 3: Identifying DLC3 Terminals CG, CANL, CANH
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 3 kΩ or higher
1. NG : Go to step 21 .
2. OK : If same code is still output after DTC is deleted, check contact condition of each connection. If connections are normal, ECU may be defective.
Check for short circuit in harness and connector between junction connector and DLC3.
PREPARATION:

Disconnect the bus line connectors from the junction connector.

CHECK:

Measure the resistance between terminals CANL and CANH of the DLC3.

Fig 4: Identifying Junction Connector & DLC3 Terminals CANH, CANL
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and DLC3 and go to step 1 .
2. OK : Go to step 1 .
Check for open circuit in harness and connector between terminals CANL and CANH of skid control ECU.
PREPARATION:

Disconnect the skid control ECU connector.

CHECK:

Measure the resistance between terminals CANL and CANH of the skid control ECU wire harness side connector.

Fig 5: Identifying Skid Control ECU Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 108 to 132 Ω
1. NG : Repair or replace harness and connector between terminal CANL and CANH of skid control ECU and go to step 1 .
2. OK : Go to next step.
Measure resistance between terminal CANL and CANH of skid control ECU.
PREPARATION:

Disconnect the skid control ECU connector.

CHECK:

Measure the resistance between terminals CANL and CANH of the skid control ECU.

Fig 6: Identifying Skid Control ECU Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 108 to 132 Ω
1. NG : Replace skid control ECU.
2. OK : If same code is still output after DTC is deleted, check contact condition of each connection. If connections are normal, ECU may be defective.
Check for short circuit in harness and connector between DLC3 and junction connector.
PREPARATION:

Disconnect the bus line connectors from the junction connector.

CHECK:

Measure the resistance between terminals CANL and CANH of the DLC3.

Fig 7: Identifying Junction Connector & DLC3 Terminals CANH, CANL
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and DLC3.
2. OK : Go to next step.
Check for short circuit in harness and connector between junction connector and skid control ECU.
PREPARATION:
1. Disconnect the bus line connectors from the junction connector.
2. Disconnect the skid control ECU connector.
CHECK:

Measure the resistance between terminals CANL and CANH of the skid control ECU wire harness side connector.

Fig 8: Identifying Junction Connector & Skid Control ECU Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and skid control ECU.
2. OK : Go to next step.
Measure resistance between terminal CANL and CANH of skid control ECU.
PREPARATION:

Disconnect the skid control ECU connector.

CHECK:

Measure the resistance between terminals CANL and CANH of the skid control ECU.

Fig 9: Identifying Skid Control ECU Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 108 to 132 Ω
1. NG : Replace skid control ECU.
2. OK : Go to next step.
Check for short circuit in harness and connector between junction connector and steering angle sensor.
PREPARATION:
1. Disconnect the bus line connectors from the junction connector.
2. Disconnect the steering angle sensor connector.
CHECK:

Measure the resistance between terminals CANL and CANH of the steering angle sensor wire harness side connector.

Fig 10: Identifying Junction Connector & Steering Angle Sensor Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and steering angle sensor.
2. OK : Go to next step.
Measure resistance between terminals CANL and CANH of steering angle sensor.
PREPARATION:

Disconnect the steering angle sensor connector.

CHECK:

Measure the resistance between terminals CANL and CANH of the steering angle sensor.

Fig 11: Identifying Steering Angle Sensor Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 108 to 132 Ω
1. NG : Replace steering angle sensor.
2. OK : Go to next step.
Check for short circuit in harness and connector between junction connector and yaw rate sensor.
PREPARATION:
1. Disconnect the bus line connectors from the junction connector.
2. Disconnect the yaw rate sensor connector.
CHECK:

Measure the resistance between terminals CANL and CANH of the yaw rate sensor wire harness side connector.

Fig 12: Identifying Junction Connector & Yaw Rate Sensor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and yaw rate sensor.
2. OK : Go to next step.
Check for short circuit in harness and connector between DLC3 and junction connector (+B short).
PREPARATION:

Disconnect the bus line connectors from the junction connector.

CHECK:

Measure the resistance between terminals CANL and BAT of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminals CANH and BAT of the DLC3.

Fig 13: Identifying Junction Connector & DLC3 Terminal CANL, CANH, BAT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and DLC3.
2. OK : Go to next step.
Check skid control ECU.
PREPARATION:

Disconnect the skid control ECU connector.

CHECK:

Measure the resistance between terminals CANL and BAT of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminals CANH and BAT of the DLC3.

Fig 14: Identifying DLC3 Terminal CANH, CANL, BAT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Replace skid control ECU.
2. OK : Go to next step.
Check steering angle sensor.
PREPARATION:

Disconnect the steering angle sensor connector.

CHECK:

Measure the resistance between terminals CANL and BAT of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminals CANH and BAT of the DLC3.

Fig 15: Identifying DLC3 Terminal CANH, CANL, BAT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Replace steering angle sensor.
2. OK : Go to next step.
Check yaw rate sensor.
PREPARATION:

Disconnect the yaw rate sensor connector.

CHECK:

Measure the resistance between terminals CANL and BAT of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminals CANH and BAT of the DLC3.

Fig 16: Identifying DLC3 Terminal CANH, CANL, BAT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Replace yaw rate sensor.
2. OK : Go to next step.
Check junction connector.
PREPARATION:

Disconnect the bus line connectors from the junction connector.

CHECK:

Measure the resistance between terminal BAT of the DLC3 and terminal 1 of the bus line connectors.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminal BAT of the DLC3 and terminal 2 of the bus line connectors.

Fig 17: Identifying Junction Connector & DLC3 Terminals BAT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Replace junction connector.
2. OK : Go to next step.
Check for short circuit in harness and connector between junction connector and skid control ECU.
PREPARATION:
1. Disconnect the bus line connectors from the junction connector.
2. Disconnect the skid control ECU connector.
CHECK:

Measure the resistance between terminal CANH of the skid control ECU wire harness side connector and terminal BAT of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminal CANL of the skid control ECU wire harness side connector and terminal BAT of the DLC3.

Fig 18: Identifying Junction Connector, Skid Control ECU & DLC3 Terminals BAT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and skid control ECU.
2. OK : Go to next step.
Check for short circuit in harness and connector between steering angle sensor and junction connector.
PREPARATION:
1. Disconnect the bus line connectors from the junction connector.
2. Disconnect the steering angle sensor connector.
CHECK:

Measure the resistance between terminal CANH of the steering angle sensor wire harness side connector and terminal BAT of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminal CANL of the steering angle sensor wire harness side connector and terminal BAT of the DLC3.

Fig 19: Identifying Junction Connector, Steering Angle Sensor & DLC3 Terminals BAT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and steering angle sensor.
2. OK : Go to next step.
Check for short circuit in harness and connector between yaw rate sensor and junction connector.
PREPARATION:
1. Disconnect the bus line connectors from the junction connector.
2. Disconnect the yaw rate sensor connector.
CHECK:

Measure the resistance between terminal CANH of the yaw rate sensor wire harness side connector and terminal BAT of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminal CANL of the yaw rate sensor wire harness side connector and terminal BAT of the DLC3.

Fig 20: Identifying Junction Connector, Yaw Rate Sensor And DLC3 Terminals BAT
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and yaw rate sensor.
2. OK : If same code is still output after DTC is deleted, check contact condition of each connection. If connections are normal, ECU may be defective.
Check for short circuit in harness and connector between DLC3 and junction connector (GND short).
PREPARATION:

Disconnect the bus line connectors from the junction connector.

CHECK:

Measure the resistance between terminals CANL and CG of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminals CANH and CG of the DLC3.

Fig 21: Identifying Junction Connector And DLC3 Terminals CG, CANH, CANL
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and DLC3.
2. OK : Go to next step.
Check skid control ECU.
PREPARATION:

Disconnect the skid control ECU connector.

CHECK:

Measure the resistance between terminals CANL and CG of the DLC3.

OK:

Resistance: 3 kΩ or higher

CHECK:

Measure the resistance between terminals CANH and CG of the DLC3.

Fig 22: Identifying DLC3 Terminals CG, CANH, CANL
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 3 kΩ or higher
1. NG : Go to step 23 .
2. OK : Replace skid control ECU.
Check steering angle sensor.
PREPARATION:

Disconnect the steering angle sensor connector.

CHECK:

Measure the resistance between terminals CANL and CG of the DLC3.

Fig 23: Identifying DLC3 Terminals CG, CANH, CANL
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 3 kΩ or higher

CHECK:

Measure the resistance between terminals CANH and CG of the DLC3.

OK:

Resistance: 3 kΩ or higher
1. NG : Go to step 24 .
2. OK : Replace steering angle sensor.
Check yaw rate sensor.
PREPARATION:

Disconnect the yaw rate sensor connector.

CHECK:

Measure the resistance between terminals CANL and CG of the DLC3.

OK:

Resistance: 3 kΩ or higher

CHECK:

Measure the resistance between terminals CANH and CG of the DLC3.

Fig 24: Identifying DLC3 Terminals CG, CANH, CANL
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 3 kΩ or higher
1. NG : Go to step 25 .
2. OK : Replace yaw rate sensor.
Check junction connector.
PREPARATION:

Disconnect the bus line connectors from the junction connector.

CHECK:

Measure the resistance between terminal CG of the DLC3 and terminal 1 of the bus line connectors.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminal CG of the DLC3 and terminal 2 of the bus line connectors.

Fig 25: Identifying Junction Connector, Bus Line Connectors And DLC3 Terminal CG
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Replace junction connector.
2. OK : Go to next step.
Check for short circuit in harness and connector between junction connector and skid control ECU.
PREPARATION:
1. Disconnect the bus line connectors from the junction connector.
2. Disconnect the skid control ECU connector.
CHECK:

Measure the resistance between terminal CANH of the skid control ECU wire harness side connector and terminal CG of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminal CANL of the skid control ECU wire harness side connector and terminal CG of the DLC3.

Fig 26: Identifying Junction Connector, Skid Control ECU & DLC3 Terminal CG
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and skid control ECU.
2. OK : Go to next step.
Check for short circuit in harness and connector between steering angle sensor and junction connector.
PREPARATION:
1. Disconnect the bus line connectors from the junction connector.
2. Disconnect the steering angle sensor connector.
CHECK:

Measure the resistance between terminal CANH of the steering angle sensor wire harness side connector and terminal CG of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminal CANL of the steering angle sensor wire harness side connector and terminal CG of the DLC3.

Fig 27: Identifying Junction Connector, Steering Angle Sensor & DLC3 Terminal CG
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and steering angle sensor.
2. OK : Go to next step.
Check for short circuit in harness and connector between yaw rate sensor and junction connector.
PREPARATION:
1. Disconnect the bus line connectors from the junction connector.
2. Disconnect the yaw rate sensor connector.
CHECK:

Measure the resistance between terminal CANH of the yaw rate sensor wire harness side connector and terminal CG of the DLC3.

OK:

Resistance: 1 MΩ or higher

CHECK:

Measure the resistance between terminal CANL of the yaw rate sensor wire harness side connector and terminal CG of the DLC3.

Fig 28: Identifying Junction Connector, Yaw Rate Sensor & DLC3 Terminal CG
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Resistance: 1 MΩ or higher
1. NG : Repair or replace harness and connector between junction connector and yaw rate sensor.
2. OK : If same code is still output after DTC is deleted, check contact condition of each connection. If connections are normal, ECU may be defective.