2000 TOYOTA CAMRY check engine

A00407
Air
Air FilterAir
E
System: OFFSystem: ON GG E
DI±108
± DIAGNOSTICSENGINE (5S±FE)
343 Author: Date:
TOYOTA hand±held tester:
1 Check connection of the vacuum hose and EGR hose (See page EC±12).
NG Repair or replace.
OK
2 Check VSV for EGR.
PREPARATION:
(a) Connect the TOYOTA hand±held tester to the DLC3.
(b) Turn the ignition switch ON and push the TOYOTA hand±
held tester main switch ON.
(c) Select the ACTIVE TEST mode on the TOYOTA hand±
held tester.
CHECK:
Check operation of the VSV when it is operated by the TOYOTA
hand±held tester.
OK:
EGR system is OFF:
Air from port E is flowing out through the air filter.
EGR system is ON:
Air from port E is flowing out port G.
OK Go to step 4.
NG
3 Check operation of the VSV for EGR (See page SF±43).
NG Replace VSV for EGR.
OK
Check for open and short in harness and con-
nector between engine room J/B No.2 and
ECM (See page IN±31).

± DIAGNOSTICSENGINE (5S±FE)
DI±109
344 Author: Date:
4 Check EGR system (See page EC±12).
NG Repair or replace.
OK
5 Check EGR vacuum modulator (See page EC±12).
NG Repair or replace.
OK
6 Check EGR valve (See page EC±12).
NG Repair or replace.
OK
7 Check manifold absolute pressure sensor (See page SF±53).
NG Repair or replace.
OK
Check and replace ECM (See page IN±31).

A03017
A03418
ON
E9 Connector
EGR
OFF
Air
FilterON
Air
Air
E
G E
VSV is ON
VSV is OFF Air
G w/o Immobiliser
w/ Immobiliser
OFF
ON EGR
E8 Connector
DI±110
± DIAGNOSTICSENGINE (5S±FE)
345 Author: Date:
OBD II scan tool (excluding TOYOTA hand±held tester):
1 Check connection of vacuum hose and EGR hose (See page EC±12).
NG Repair or replace.
OK
2 Check VSV for EGR.
PREPARATION:
(a) Remove the glove compartment (See page SF±64).
(b) Disconnect the E9 connector (w/o immobilizer) or E8 con-
nector (w/ immobilizer) the ECM.
(c) Turn the ignition switch ON.
CHECK:
Check VSV function
(1) Connect between terminal EGR of the ECM con-
nector and body ground (ON).
(2) Disconnect between terminal EGR of the ECM con-
nector and body ground (ON).
OK:
(1) VSV is ON:
Air from port E is flowing out through the air filter.
(2) VSV is OFF:
Air from port E is flowing out port G.
OK Go to step 4.
NG

± DIAGNOSTICSENGINE (5S±FE)
DI±111
346 Author: Date:
3 Check operation of VSV for EGR (See page SF±43).
NG Replace VSV for EGR.
OK
Check for open and short in harness and con-
nector between engine room J/B No.2 and
ECM (See page IN±31).
4 Check EGR system (See page EC±12).
NG Repair or replace.
OK
5 Check EGR vacuum modulator (See page EC±12).
NG Repair or replace.
OK
6 Check EGR valve (See page EC±12).
NG Repair or replace.
OK

DI±112
± DIAGNOSTICSENGINE (5S±FE)
347 Author: Date:
7 Check manifold absolute pressure sensor (See page SF±53).
NG Repair and replace.
OK
Check and replace ECM (See page IN±31).

± DIAGNOSTICSENGINE (5S±FE)
DI±113
348 Author: Date:
DTC P0402 Exhaust Gas Recirculation Flow Excessive
Detected
CIRCUIT DESCRIPTION
Refer to DTC P0401 (Exhaust Gas Recirculation Flow Insufficient Detected) on page DI±105.
DTC No.DTC Detecting ConditionTrouble Area
P0402
After engine is warmed up, conditions (a) and (b) continue:
(a) Intake manifold absolute pressure is larger than value cal-
culated by ECM while EGR system is ON
(b) Misfiring is detected during idling
(2 trip detection logic)
EGR valve stuck open

Vacuum or EGR hose is connected to wrong post

Manifold absolute pressure sensor

ECM
WIRING DIAGRAM
Refer to DTC P0401 (Exhaust Gas Recirculation Flow Insufficient Detected) on DI±105.
SYSTEM CHECK DRIVING PATTEM
Refer to DTC P0401 (Exhaust Gas Recirculation Flow Insufficient Detected) on DI±105.
INSPECTION PROCEDURE
HINT:

If DTC P0105 (Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction), P0106 (Manifold
Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem) and P0402 (Exhaust
Gas Recirculation Flow Excessive Detected) are output simultaneously, perform troubleshooting of
DTC P0105 first.

If DTC P0401 (Exhaust Gas Recirculation Flow Insufficient Detected) and P0402 (Exhaust Gas Recir-
culation Flow Excessive Detected) are output simultaneously, perform troubleshooting of DTC P0402
first.

Read freeze frame data using TOYOTA hand±held tester or OBD II scan tool. Because freeze frame
records the engine conditions when the malfunction is detected, when troubleshooting it is useful for
determining whether the vehicle was running or stopped, the engine warmed up or not, the air±fuel
ratio lean or rich, etc. at the time of the malfunction.
1 Check connection of vacuum hose and EGR hose (See page EC±12).
NG Repair or replace.
OK
DI016±04

DI±114
± DIAGNOSTICSENGINE (5S±FE)
349 Author: Date:
2 Check EGR valve (See page EC±12).
NG Repair or replace.
OK
3 Check VSV for EGR*.
*: If you have TOYOTA hand±held tester, see page DI±105, step 2.
If you have no TOYOTA hand±held tester, see page DI±105, step 2.
OK Go to step 4.
NG
4 Check operation of VSV for EGR (See page SF±43).
NG Replace VSV for EGR.
OK
Check for open and short in harness and con-
nector between engine room J/B No.2 and
ECM (See page IN±31).
5 Check EGR system (See page EC±12.)
NG Repair or replace.
OK

± DIAGNOSTICSENGINE (5S±FE)
DI±115
350 Author: Date:
6 Check EGR vacuum modulator (See page EC±12).
NG Repair or replace.
OK
7 Check manifold absolute pressure sensor (See page SF±53).
NG Repair or replace.
OK
Check and replace ECM (See page IN±31).