Toyota RAV4 Service Manual: Check for intermittent problems
- Check for intermittent problems
Hint:
A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ecus can be detected by using the ecu data list function of an intelligent tester.
- Turn the ignition switch off and connect the intelligent tester (with can vim) to the dlc3.
- Turn the ignition switch on.
- Follow the prompts on the intelligent tester to display the data list and select areas where a momentary interruption should be monitored.
Hint:
- A momentary interruption (open circuit) cannot be detected for 3 seconds after the ignition switch is turned on (initial check).
- If the status remains on the error display, check for continuity between the ecu and the sensors, or between ecus.
- The error display on the intelligent tester remains on for 1 second after the harness signal changes from a momentary interruption (open circuit) to normal condition.
- While observing the screen, gently jiggle the connector or wire harness between the ecu and sensors, or between ecus.
Ok: error display does not change.
Hint:
The connector and/or wire harness have a momentary interruption (open circuit) if the display changes. Repair or replace the connector and wire harness if either of them is faulty.
How to proceed with troubleshooting
Hint:
Use these procedures to troubleshoot the vehicle stability
control system.
*: Use the intelligent tester.
Vehicle brought to workshop
Inspect battery voltage
Standard v ...
Calibration
Description
After replacing components relating to the vsc or
performing "front wheel alignment adjustment",
clear and read the sensor calibration data.
Follow the chart to pe ...
Other materials:
Utility vehicle
precautions
This vehicle belongs to the utility vehicle class, which has
higher ground clearance and narrower tread in relation to the
height of its center of gravity to make it capable of performing in
a wide variety of off-road applications.
Utility vehicle feature
Specific design characteristics give ...
Terminals of ecu
Check combination meter assembly
Measure the voltage and resistance of the
connector.
Check instrument panel junction block (main body ecu)
Measure the voltage and resistance of the
connectors.
...
Tire pressure warning receiver (w/ antenna)
Components
...