SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 635 (CAN COMMUNICATION SYSTEM - DIAGNOSTICS)CHECK CAN BUS LINES FOR SHORT CIRCUITINSPECTION 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 Camry. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CAN BUS LINES FOR SHORT (DLC3 SUB BUS LINE) 
    1. Turn the ignition switch to the LOCK position.
    2. Disconnect all wire harness connectors (J13, J14, J15, J17) from the junction connector.
      Fig 1: Checking Can Bus Lines For Short (Dlc3 Sub Bus Line)
      G02895371Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester connection Condition Specified value
      D3-6 (CANH) - D3-14 (CANL) Ignition SW OFF 1 MΩ or more
      Fig 2: Measuring Resistance According Value (S)
      G02895372Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE DLC3 SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 
    2. OK: Go to next step. 
  2. CHECK CAN BUS LINES FOR SHORT (SKID CONTROL ECU - JUNCTION CONNECTOR) 
    1. Disconnect the connector (S1) from the skid control ECU.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester connection Condition Specified value
      S1-11 (CAN-H) - S1-25 (CAN-L) Ignition SW OFF 1 MΩ or more

      HINT:

      Check all wire harness connectors connected to the junction connector while disconnecting them.

      Fig 3: Checking Can Bus Lines For Short (Skid Control ECU - Junction Connector)
      G02895373Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (CAN-H, CAN-L) 
    2. OK: Go to next step. 
  3. INSPECT SKID CONTROL ECU WITH ACTUATOR (CANH - CANL) 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester connection Condition Specified value
      11 (CANH) - 25 (CANL) Ignition SW OFF 108 to 132 Ω
      Fig 4: Inspecting Skid Control ECU With Actuator (Canh - Canl)
      G02895374Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE SKID CONTROL ECU WITH ACTUATOR (See  BRAKE ACTUATOR ASSEMBLY (W/VSC) (FROM JULY, 2003)  ) 
    2. OK: Go to next step. 
  4. CHECK CAN BUS LINES FOR SHORT (STEERING SENSOR - JUNCTION CONNECTOR) 
    1. Disconnect the connector (S11) from the steering sensor.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester connection Condition Specified value
      S11-10 (CANH) - S11-9 (CANL) Ignition SW OFF 1 MΩ or more

      HINT:

      Check all wire harness connectors connected to the junction connector while disconnecting them.

      Fig 5: Checking Can Bus Lines For Short (Steering Sensor - Junction Connector)
      G02895375Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE STEERING SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 
    2. OK: Go to next step. 
  5. INSPECT STEERING SENSOR (CANH - CANL) 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester connection Condition Specified value
      10 (CANH) - 9 (CANL) Ignition SW OFF 108 to 132 Ω
      Fig 6: Inspecting Steering Sensor (Canh - Canl)
      G02895376Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE STEERING SENSOR (See  STEERING SENSOR  ) 
    2. OK: Go to next step. 
  6. CHECK CAN BUS LINES FOR SHORT (YAW RATE SENSOR SUB BUS LINE) 
    1. Disconnect the connector (Y1) from the yaw rate sensor.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester connection Condition Specified value
      Y1-3 (CANH) - Y1-2 (CANL) Ignition SW OFF 1 MΩ or more

      HINT:

      Check all wire harness connectors connected to the junction connector while disconnecting them.

      Fig 7: Checking CAN Bus Lines For Short (Yaw Rate Sensor Sub Bus Line)
      G02895377Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE YAW RATE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 
    2. OK: REPLACE YAW RATE SENSOR (See  YAWRATE SENSOR (FROM JULY, 2003)  ) 
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.