Toyota Sienna Service Manual: Actuator Supply Voltage Circuit / Open
DTC P0657 Actuator Supply Voltage Circuit / Open
DESCRIPTION
The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is functioning properly. The output voltage is usually 0 V when the ignition switch is turned off. If the output voltage is higher than 7 volts when the ignition switch is turned off, the ECM will illuminate the MIL and set a DTC when the ignition switch is turned on.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
INSPECTION PROCEDURE
1 CHECK WHETHER DTC OUTPUT RECURS (IN ADDITION TO DTC P0657)
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Turn the tester on.
- Clear the DTC.
- Turn the ignition switch off.
- Disconnect the battery negative terminal and wait for 1 minute.
- Connect the battery negative terminal.
- Turn the ignition switch to the ON position for 10 seconds.
- Turn the ignition switch off.
- Turn the ignition switch to the ON position.
- Enter the following menus: DIAGNOSIS / ENHANCED II / DTC INFO / CURRENT CODES.
- Read the DTCs.
Result
REPLACE ECM
VIN not Programmed or Mismatch - ECM / PCM
DTC P0630 VIN not Programmed or Mismatch - ECM / PCM
DESCRIPTION
DTC P0630 is set when the Vehicle Identification Number (VIN) is not stored
in the Engine Control Module
(ECM) or the input VIN is ...
Transmission Range Sensor Circuit Malfunction
(PRNDL Input)
DTC P0705 Transmission Range Sensor Circuit Malfunction
(PRNDL Input)
DESCRIPTION
The park/neutral position switch detects the shift lever position and sends
signals to the ECM.
HINT:
After ...
Other materials:
Dinghy towing
Your vehicle is not designed to be dinghy towed (with 4 wheels
on the ground) behind a motor home.
NOTICETo avoid serious damage to your vehicle
Do not tow your vehicle with four wheels
on the ground.
To prevent causing serious damage to the transaxle and Active
Torque ...
Confirmation of transmitter id registration
(a) Make sure that the ignition switch is off.
(b) Connect the intelligent tester to DLC3.
(c) Turn the ignition switch to the ON position.
(d) Select "TIREPRESS" by following the prompts
displayed on the intelligent tester.
(e) Confirm that the data of tire pressure of all ti ...
Center Airbag Sensor Assembly Malfunction
DTC B1100/31 Center Airbag Sensor Assembly Malfunction
DESCRIPTION
The center airbag sensor assembly consists of the center airbag sensor
assembly, safing sensor, drive
circuit, diagnosis circuit and ignition control, etc.
It receives signals from the airbag sensor, judges whether or not the ...
