Toyota 4Runner manuals

Toyota 4Runner: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Result List of Check CAN Bus Line

Symptom

Suspected Area

See page

Result of "How to proceed with Troubleshooting" is "Open in CAN Main Wire"

Open in CAN Main Wire


Result of "How to Proceed with Troubleshooting" is "Short in CAN Bus Lines"

Short in CAN Bus Lines


Result of "How to Proceed with Troubleshooting" is "Short to B+ in CAN Bus Line"

Short to B+ in CAN Bus Line


Result of "How to Proceed with Troubleshooting" is "Short to GND in CAN Bus Line"

Short to GND in CAN Bus Line


Result of "How to Proceed with Troubleshooting" is "Open in One Side of CAN Branch Line"

Open in One Side of CAN Branch Line


Communication Stop Mode Table

Symptom

Suspected Area

See page

"Skid Control (ABS/VSC/TRAC)" is not displayed on the Techstream*1

Brake Actuator (Skid Control ECU) Communication Stop Mode


"Skid Control (ABS/VSC/TRAC)" is not displayed on the Techstream*2

Skid Control ECU Communication Stop Mode


"Air Conditioning Amplifier" is not displayed on the Techstream*3

Air Conditioning Amplifier Communication Stop Mode


"PPS" is not displayed on the Techstream

Power Steering ECU Communication Stop Mode


"Spiral cable (Steering Angle Sensor)" is not displayed on the Techstream

Steering Angle Sensor Communication Stop Mode


"Yaw Rate Sensor" is not displayed on the Techstream

Yaw Rate Sensor Communication Stop Mode


"ECM (Engine)" is not displayed on the Techstream

ECM Communication Stop Mode


"Main Body" is not displayed on the Techstream

Main Body ECU Communication Stop Mode


"Power Management1" is not displayed on the Techstream*4

Power Management Control ECU Communication Stop Mode


"Combination Meter" is not displayed on the Techstream

Combination Meter ECU Communication Stop Mode


"Certification (Smart)" is not displayed on the Techstream*4

Certification ECU Communication Stop Mode


"Airbag" is not displayed on the Techstream

Center Airbag Sensor Communication Stop Mode


"KDSS" is not displayed on the Techstream*5

Suspension Control ECU Communication Stop Mode


"Four Wheel Drive Control" is not displayed on the Techstream*2

4WD Control ECU Communication Stop Mode


"Display and Navigation (AVN1)" is not displayed on the Techstream*6

Navigation Receiver Assembly Communication Stop Mode


"Display and Navigation (AVN1)" is not displayed on the Techstream*7

Audio Receiver Assembly Communication Stop Mode


  • *1: for 2WD
  • *2: for 4WD
  • *3: w/o Smart Key System
  • *4: w/ Smart Key System
  • *5: w/ Kinetic Dynamic Suspension System
  • *6: for Navigation Receiver Type
  • *7: for Radio and Display Receiver Type
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT IMPORTANT POINTS CONCERNING TROUBLESHOOTING CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS syste ...

Terminals Of Ecu
TERMINALS OF ECU HINT: Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation. 1. DISCONNECT CABLE ...

Other materials about Toyota 4Runner:

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART HINT: If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of code, refer to the "See page" below. CAN Communication System DTC Code De ...

Fail-safe Chart
FAIL-SAFE CHART 1. FAIL-SAFE This function minimizes the loss of ECT functions when a malfunction occurs in a sensor or solenoid. Malfunction Part Function No. 1 ATF temperature sensor During a No. 1 ATF t ...

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