Toyota Sienna Service Manual: Check mode procedure
HINT: Intelligent tester only: Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected by normal mode.
NOTICE: All the stored DTCs and freeze frame data are erased if:
- the ECM is changed from normal mode to check mode
or vice versa; or 2) the ignition switch is turned off or
turned to the ACC position from the ON position while in
check mode.
Before changing modes, always check and make a note of any DTCs and freeze frame data.
1. CHECK MODE PROCEDURE (Using an intelligent tester)
- Check and ensure the following conditions:
- Battery voltage 12 V or more
- Throttle valve fully closed
- The shift lever in the P or N position
- A/C switched OFF
- Turn the ignition switch off.
- Connect an intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Turn the tester ON.
- Select the following menu items: DIAGNOSIS / ENHANCED OBD II / CHECK MODE.
- Switch the ECM from normal mode to check mode.
- Make sure that the MIL flashes as shown in the illustration.
- Start the engine.
- Make sure that the MIL goes off.
- Simulate the conditions of the malfunction described by the customer.
- Check for DTCs and freeze frame data using the tester.
Freeze frame data
1. DESCRIPTION
The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC
is stored. When troubleshooting, freeze frame data
can be helpful in dete ...
Fail-safe chart
If any of the following DTCs are set, the ECM enters fail-safe
mode to allow the vehicle to be driven temporarily.
HINT:
*1: The vehicle can be driven slowly when the accelerator
ped ...
Other materials:
Release Actuator Circuit
DESCRIPTION
The fold seat control ECU receives a switch operation signal from the fold
seat switch and activates the
release actuator. The release actuator releases the lock of the stowed seat
based on a drive voltage
received from the ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT ...
Power back door touch sensor
INSPECTION
1. INSPECT POWER BACK DOOR TOUCH SENSOR LH
Check the resistance of the sensor.
Resistance
If the result is not as specified, replace the sensor.
2. INSPECT POWER BACK DOOR TOUCH SENSOR RH
Check the resistance of the sensor.
Resistance
If the result is not as ...
Removal
1. REMOVE GLOVE COMPARTMENT DOOR STOPPER
SUB-ASSEMBLY
2. REMOVE GLOVE COMPARTMENT DOOR
ASSEMBLY
3. REMOVE STEREO COMPONENT AMPLIFIER
ASSEMBLY (W/ STEREO COMPONENT AMPLIFIER)
4. REMOVE DISTANCE CONTROL ECU ASSEMBLY
Remove the bolt.
Disengage the clip and remove the distanc ...
