Toyota RAV4 manuals

Toyota Sienna Service Manual: Fail-safe chart

1. FAIL-SAFE FUNCTION

  1. When communication fails in any of the main wires (communication lines) due to a short circuit or other causes, the fail-safe function, which is specified for each system, operates to prevent the system from malfunctioning.
  2. The table below shows the effects on each system when communication is impossible. For further details, refer to each system.

FAIL-SAFE FUNCTION

HINT:

Diagnosis system
1. BUS CHECK Select "BUS CHECK" from the "OBD/MOBD MENU" screen. HINT: The ECUs and sensors that are properly connected to the CAN communication system can be displaye ...

Skid Control ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Skid Control ECU Communication Stop Mode "ABS/VSC/TRC" is not displayed on the " ...

Other materials:

Starter Relay Circuit High
DTC P0617 Starter Relay Circuit High MONITOR DESCRIPTION While the engine is being cranked, the positive battery voltage is applied to terminal STA of the ECM. If the ECM detects the Starter Control (STA) signal while the vehicle is being driven, it determines that there is a malfunction i ...

If the battery is discharged
The following procedures may be used to start the engine if the vehicle’s battery is discharged. You can call your Toyota dealer or qualified repair shop. If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt battery, you can jump start your vehicle by following ...

Operation check
1. REMOVE CHECK FUNCTION  Check that the key reminder warning buzzer sounds.  With the driver side door closed, insert the key into the ignition key cylinder and then turn the key to LOCK or ACC.  Check that the buzzer sounds intermittently if the driver side door ...

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