Toyota Sienna Service Manual: Basic inspection

Toyota Sienna Service Manual / 2GR-FE Engine control system / SFI system / Basic inspection

When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when engine troubleshooting.

1 CHECK BATTERY VOLTAGE

NOTICE: Carry out this check with the engine stopped and ignition switch off.

Result

Result

2 CHECK WHETHER ENGINE CRANKS

3 CHECK WHETHER ENGINE STARTS

4 CHECK AIR FILTER

Visually check that the air filter is not excessively contaminated with dirt or oil.

5 CHECK IDLING SPEED

Check the idling speed

6 CHECK FUEL PRESSURE

Check the fuel pressure

7 CHECK FOR SPARKS

Check for sparks

PROCEED TO PROBLEM SYMPTOMS TABLE

Check for intermittent problems

1. CHECK FOR INTERMITTENT PROBLEMS HINT: For use of the intelligent tester only: Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with an intelligent teste ...

Registration

NOTICE: The Vehicle Identification Number (VIN) must be input into the replacement ECM. HINT: The VIN is a 17-digit alphanumeric vehicle identification number. The intelligent tester is required ...

Other materials:

Radio and Navigation Assembly Communication Error
INSPECTION PROCEDURE 1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE Enter the diagnostic mode. Press the "LAN Mon" switch to change to "LAN Monitor" mode. Identify the component shown by the sub-code. HINT: "110 (multi-display)" i ...

Throttle Actuator Control Throttle Body Range / Performance
DESCRIPTION The Electronic Throttle Control System (ETCS) is composed of the throttle actuator, Throttle Position (TP) sensor, Accelerator Pedal Position (APP) sensor, and ECM. The ECM operates the throttle actuator to regulate the throttle valve in response to driver inputs. The TP senso ...

Park / Neutral Position Switch Circuit
DESCRIPTION The clearance warning ECU receives the reverse or park position signal from the park / neutral position switch. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT CLEARANCE WARNING ECU Disconnect the C9 connector from the clearance warning ECU. Measure the voltage ...