TOYOTA handheld tester

-if

F

Select the ACTIVE TEST mode on the TOYOTA hand-held tester.

CHECK:

Check operation of VSV, when it is operated by the TOYOTA

hand-held tester.

EGR system is OFF:

Air from pipe E is flowing out through the air filter. EGR system is ON:

Air from pipe E is flowing out through pipe F.

Check for open and short in harness and connector between J/B No.2 and ECM (See page IN-26).

4

Check EGR vacuum modulator (See page EC-7 ).

NG

Repair or replace.

OK

S

Check EGR valve (See page EC-7 ).

NG

Repair or replace.

OK

e

Check manifold absolute pressure sensor (See page DI-23 ).

NG

Repair or replace.

OK

Check and replace ECM (See page IN-26 ).

OBD II scan tool (excluding TOYOTA hand-held tester):

Check connection of vacuum hose, EGR hose (See page EC-2).

Repair or replace.

Connector

Connector

PREPARATION:

(a) Turn up the floor mat on the passenger side.

(b) Remove the 2 bolts for ECM.

(c) Disconnect the "E5" or "E8" connector of ECM.

(d) Turn the ignition switch ON. CHECK:

Check VSV function

(1) Connect terminal EGR of the ECM connector and the body ground (ON).

(2) Disconnect terminal EGR of the ECM connector and the body ground (OFF).

Air from pipe E is flowing out through pipe F.

Air from pipe E is flowing out through the air filter.

Check for open and short in harness and connector between J/B No.2 and ECM (See page IN-26).

S

Check EGR valve (See page EC-7 ).

NG

Repair or replace.

OK

e

Check manifold absolute pressure sensor (See page DI-23 ).

NG

Repair and replace.

OK

Check and replace ECM (See page IN-26 ).

DTC

P0402

Exhaust Gas Recirculation Flow Excessive

Detected

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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