Home ReviewsRefund Car not listed?
Home/Toyota/Matrix/Toyota Matrix E140 (2008-2014)/Repair manual/Transfer Case/Active Torque Control 4WD System (Diagnostic Codes & Sympto…
Contents Wiring diagrams Section: Transfer Case All sections

Active Torque Control 4WD System (Diagnostic Codes & Symptom Tests): Diagnosis Toyota Matrix E140

Transfer Case 8 illustrations ~1375 words

INSPECTION PROCEDURE

HINT

Check the condition of each related circuit connector before troubleshooting. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE .

Scheme 129

Scheme 129: PROCEDURE
Scheme 129: PROCEDURE

Scheme 130

Scheme 130
Scheme 130
  1. CHECK FOR DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-427522-S38482648402011101200000) . Turn the ignition switch to ON and check that no CAN communication system DTC is output. Start the engine. Drive the vehicle, accelerate to a speed of 3 km/h (2 mph) or more, and check that no speed sensor DTC (brake control system DTC) is output. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427317-S18942435532011101200000) . Result Result Proceed to Neither CAN communication system DTC nor speed sensor DTC (Brake control system DTC) is output A CAN communication system DTC is output B Speed Sensor DTC (Brake control system DTC) is output C B --> See step 7 C --> See step 8 A: Go to next step
  2. INSPECT FUSE (ECU-IG NO. 1) Remove the ECU-IG NO. 1 fuse from the instrument junction block Measure the resistance of the fuse. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 Always Below 1 ohms HINT: Check for short circuits in all harnesses and connector connected to the ECU-IG NO. 1 fuse. Refer to «PRECAUTION»(ref-427305-S14224765222011101200000) . NG --> REPLACE FUSE OK: Go to next step
  3. CHECK WIRE HARNESS (4WD CONTROL ECU - BATTERY) Disconnect the ECU connector. Measure the voltage of the wire harness side connector. Standard Voltage Tester Connection Switch Condition Specified Condition E17-11 (IG1) - Body Ground Ignition switch ON 10 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK WIRE HARNESS (4WD CONTROL ECU - BODY GROUND) Disconnect the ECU connector. Measure the resistance of the wire harness side connector. Standard Resistance Tester Connection Condition Specified Condition E17-23 (GND) - Body Ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. RECONFIRM DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-427522-S38482648402011101200000) . Start the engine. Drive the vehicle, accelerate to a speed of 3 km/h (2 mph or more, and check if the same DTC is output. Result Result Proceed to DTC is output A DTC is not output B HINT: Reinstall the sensor, connectors, etc. and restore the vehicle to its prior condition before rechecking DTCs. B --> END A --> See step 6
  6. REPLACE 4WD CONTROL ECU. Refer to «REMOVAL»(ref-427492-S05113841772011101200000)
  7. REPAIR CIRCUIT INDICATOR BY OUTPUT CODE (CAN COMMUNICATION SYSTEM). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-427503-S31346713902011101200000)
  8. REPAIR CIRCUIT INDICATOR BY OUTPUT CODE (BRAKE CONTROL SYSTEM). Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427317-S18942435532011101200000)

HINT

Check the condition of each related circuit connector before troubleshooting. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE .

HINT

Check the condition of each related circuit connector before troubleshooting. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE .

HINT

Check the condition of each related circuit connector before troubleshooting. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE .

HINT

Check the condition of each related circuit connector before troubleshooting. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE .

Scheme 131

Scheme 131
Scheme 131
  1. CHECK FOR DTC Check the output DTC. Refer to «DTC CHECK / CLEAR»(ref-427522-S38482648402011101200000) . Result Result Proceed to Neither CAN communication system DTC nor 4WD control system DTC is output A CAN communication DTC is output B 4WD control system DTC is output C HINT: When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor. B --> See step 8 C --> See step 9 A: Go to next step
  2. CHECK IF 4WD CONTROL ECU CONNECTOR IS SECURELY CONNECTED Check if the skid control ECU connector is securely connected. OK The connector is securely connected. NG --> CONNECT CONNECTOR TO ECU CORRECTLY OK: Go to next step
  3. CHECK BATTERY Check the battery voltage. Standard Voltage 11 to 14 V Result Result Proceed to OK A NG B B --> See step 10 A: Go to next step
  4. PERFORM ACTIVE TEST (4WD WARNING LIGHT) Warm up the engine. Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Chassis / 4WD / Active Test. According to the display on the Techstream, perform the Active Test. CHASSIS / 4WD / ACTIVE TEST Tester Display Test Part Control Range Diagnostic Note 4WD Light 4WD Warning light Warning light is ON/OFF Observer combination meter OK The 4WD warning light turns off. NG --> See step 5 OK --> See step 11
  5. CHECK WIRE HARNESS OR CONNECTOR (4WD CONTROL ECU - BATTERY) Disconnect the ECU connector. Turn the ignition switch to ON. Measure the voltage of the wire harness side connector. Standard Voltage Tester Connection Condition Specified Condition E17-11 (IG1) - Body Ground Ignition switch ON 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (4WD CONTROL ECU - BATTERY) OK: Go to next step
  6. CHECK WIRE HARNESS OR CONNECTOR (4WD CONTROL ECU - BODY GROUND) Disconnect the ECU connector. Measure the resistance of the wire harness side connector. Standard Resistance Tester Connection Condition Specified Condition E17-23 (GND) - Body Ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (4WD CONTROL ECU - BODY GROUND) OK: Go to next step
  7. CHECK 4WD CONTROL ECU Connect the ECU connector. Turn the ignition switch to ON. Measure the voltage of the wire harness side connector. Standard Voltage Tester Connection Condition Specified Condition E17-11 (IG1) - Body Ground Ignition switch ON 11 to 14 V NG --> See step 11 OK --> See step 12
  8. REPAIR CIRCUIT INDICATOR BY OUTPUT CODE (CAN COMMUNICATION SYSTEM). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-427503-S31346713902011101200000)
  9. REPAIR CIRCUIT INDICATOR BY OUTPUT CODE (ACTIVE TORQUE CONTROL 4WD SYSTEM). Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427522-S01026462682011101200000)
  10. CHECK OR REPLACE CHARGING SYSTEM AND BATTERY. Refer to «PROBLEM SYMPTOMS TABLE»(ref-427446-S24612059802011101200000)
  11. REPLACE 4WD CONTROL ECU. Refer to «REMOVAL»(ref-427492-S05113841772011101200000)
  12. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-427467-S42331857252011101200000)

Check the condition of each related circuit connector before troubleshooting. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE .

Scheme 132

Scheme 132: PROCEDURE
Scheme 132: PROCEDURE

Scheme 133

Scheme 133
Scheme 133
  1. CHECK CAN COMMUNICATION SYSTEM Check if the CAN communication system DTC is output. Result Result Proceed to DTC is not output A DTC is output B HINT: When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor. B --> See step 3 A: Go to next step
  2. INSPECT 4WD WARNING LIGHT Disconnect the 4WD control ECU connector. Turn the ignition switch to ON. Check that the 4WD warning light comes on. OK 4WD warning light comes on. NG --> See step 5 OK --> See step 4
  3. REPAIR CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-427503-S31346713902011101200000)
  4. REPLACE 4WD CONTROL ECU. Refer to «REMOVAL»(ref-427492-S05113841772011101200000)
  5. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-427467-S42331857252011101200000)

HINT

Check the condition of each related circuit connector before troubleshooting. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE .

Scheme 134

Scheme 134: PROCEDURE
Scheme 134: PROCEDURE

Scheme 135

Scheme 135
Scheme 135

Scheme 136

Scheme 136
Scheme 136
  1. CHECK CAN COMMUNICATION SYSTEM Check if the CAN communication DTC is output. Refer to «DTC CHECK / CLEAR»(ref-427522-S38482648402011101200000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 6 A: Go to next step
  2. CHECK WIRE HARNESS (TC OF DLC3 - TC OF ECM AND BODY GROUND) Turn the ignition switch off. Disconnect the ECM connector. Measure the resistance of the wire harness side connectors. Standard Resistance Tester Connection (DLC3 - ECM) Condition Specified Condition E15-13 (TC) - A37-27 (TC) Always Below 1 ohms E15-13 (TC) - Body Ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND) Measure the resistance of the DLC3. Standard Resistance Tester Connection Condition Specified Condition E15-4 (CG) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK WIRE HARNESS (TC OF DLC3 - BODY GROUND) Measure the resistance of the DLC3. Standard Resistance Tester Connection Condition Specified Condition E15-13 (TC) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 5
  5. REPLACE 4WD CONTROL ECU. Refer to «REMOVAL»(ref-427492-S05113841772011101200000)
  6. INSPECT CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-427503-S31346713902011101200000)

More articles — Active Torque Control 4WD System (Diagnostic Codes & Symptom Tests)