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:

Removal
1. REMOVE CENTER REAR SEAT LAP TYPE BELT ASSEMBLY (for 8-Passenger) HINT: Refer to the instructions for disassembly of the rear No. 1 seat assembly (for center seat). Remove the bolt and center seat lap type belt assembly. 2. REMOVE CENTER REAR NO. 2 SEAT LAP BELT ASSEMBLY WITH ...

Navigation Voice Circuit
DESCRIPTION This circuit is used when the voice guidance in the navigation system is on. WIRING DIAGRAM INSPECTION PROCEDURE 1 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - STEREO COMPONENT AMPLIFIER) Disconnect the radio and navigation assembly connector R13 and s ...

Diagnostic trouble code chart
If a trouble code is displayed during the DTCs check (sensor check), check the circuit listed for the code in the table below (Proceed to the page given for that circuit). AIR CONDITIONING SYSTEM HINT: *1: If the cabin temperature is approximately -18.6°C (- 3.7°F) or lo ...