Dtc P0403 Exhaust Gas Recirculation Control Circuit. Corolla Auris
Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT EGR VALVE ASSEMBLY
CHECK EGR VALVE ASSEMBLY (VOLTAGE)
CHECK EGR VALVE ASSEMBLY (EGR VALVE ASSEMBLY - ECM)
INSPECT FUSE (EFI NO. 2 FUSE)
DTC P0403 Exhaust Gas Recirculation Control Circuit |
DESCRIPTION
Refer to DTC P0400 (See page Нажмите здесь).DTC No.
| DTC Detection Condition
| Trouble Area
|
P0403
| Open or short in EGR valve circuit
(The MIL is illuminated and a DTC is set when the same malfunction is detected on 2 consecutive trips*
*: One trip is counted when the ignition switch is turned from off to the ON position and back to off)
| - Open or short in EGR circuit
- EGR valve assembly
- ECM
|
- УКАЗАНИЕ:
- DTC P0403 is set when the ignition switch is in the ON position.
WIRING DIAGRAM
Refer to DTC P0400 (See page Нажмите здесь).
INSPECTION PROCEDURE
- УКАЗАНИЕ:
- Read freeze frame data using an intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
| 1.INSPECT EGR VALVE ASSEMBLY |
Disconnect the EGR valve assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
B69-5 (+B2) - B69-4 (EGR1)
| 20°C (68°F)
| 18.2 to 21.0 Ω
|
B69-5 (+B2) - B69-6 (EGR3)
| 20°C (68°F)
| 18.2 to 21.0 Ω
|
B69-2 (+B1) - B69-1 (EGR2)
| 20°C (68°F)
| 18.2 to 21.0 Ω
|
B69-2 (+B1) - B69-3 (EGR4)
| 20°C (68°F)
| 18.2 to 21.0 Ω
|
Reconnect the EGR valve assembly assembly.
| 2.CHECK EGR VALVE ASSEMBLY (VOLTAGE) |
Disconnect the EGR valve assembly connector.
Turn the ignition switch to the ON position.
Measure the voltage according to the value(s) in the table below.
- Standard voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
B69-2 (+B1) - Body ground
| Ignition switch ON
| 9 to 14 V
|
B69-5 (+B2) - Body ground
| Ignition switch ON
| 9 to 14 V
|
Reconnect the EGR valve assembly connector.
| 3.CHECK EGR VALVE ASSEMBLY (EGR VALVE ASSEMBLY - ECM) |
Disconnect the EGR valve assembly connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for open):
Tester Connection
| Condition
| Specified Condition
|
B69-4 (EGR1) - A57-12 (EGR1)
| Always
| Below 1 Ω
|
B69-1 (EGR2) - A57-11 (EGR2)
| Always
| Below 1 Ω
|
B69-6 (EGR3) - A57-31 (EGR3)
| Always
| Below 1 Ω
|
B69-3 (EGR4) - A57-30 (EGR4)
| Always
| Below 1 Ω
|
- Standard resistance (Check for short):
Tester Connection
| Condition
| Specified Condition
|
B69-4 (EGR1) or A57-12 (EGR1) - Body ground
| Always
| 10 kΩ or higher
|
B69-1 (EGR2) or A57-11 (EGR2) - Body ground
| Always
| 10 kΩ or higher
|
B69-6 (EGR3) or A57-31 (EGR3) - Body ground
| Always
| 10 kΩ or higher
|
B69-3 (EGR4) or A57-30 (EGR4) - Body ground
| Always
| 10 kΩ or higher
|
Reconnect the EGR valve assembly connector.
Reconnect the ECM connector.
| | REPAIR OR REPLACE HARNESS OR CONNECTOR (EGR VALVE ASSEMBLY - ECM) |
|
|
| 4.INSPECT FUSE (EFI NO. 2 FUSE) |
Remove the EFI No. 2 fuse from the engine room relay block.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
EFI No. 2 fuse
| Always
| Below 1 Ω
|
Reinstall the EFI No. 2 fuse.
| | REPLACE FUSE (EFI NO. 2 FUSE) |
|
|
| OK |
|
|
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR (EGR VALVE ASSEMBLY - INTEGRATION RELAY (EFI MAIN RELAY)) |
|
