Toyota Sienna Service Manual: Basic inspection

Toyota Sienna Service Manual / Engine / 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

2 CHECK WHETHER ENGINE CRANKS

3 CHECK WHETHER ENGINE STARTS

4 CHECK AIR FILTER

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

5 CHECK IDLING SPEED

(a) Check the idling speed (See page EM-2).

6 CHECK FUEL PRESSURE

(a) Check the fuel pressure (See page FU-7).

7 CHECK FOR SPARKS

(a) Check for sparks (See page ES-217).

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 tes ...

Other materials:

Definition of terms
Term Definition Monitor description Description of what the ecm monitors and how it detects malfunctions (monitoring purpose and its details). Related dtcs Diagnostic codeV Typical enabling condition Preconditions that allow the ecm to detect malfunc ...

Check mode procedure
HINT: Check mode has a higher sensitivity to malfunctions and can detect malfunction that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are detected with 1-trip detection logic. Dtc check (check mode) HINT: I ...

Check that initialization has been completed
(a) Confirm that the data of tire pressure of all tires are displayed on the intelligent tester screen. Tester Display Measurement Item/Range Normal Condition Diagnostic Note TIREPRESS1 ID1 tire inflation pressure (Absolute pressure) / min.: 100 kPa (1 kgf/cm2, 14 ...