DTC P0471 EGR Gas Pressure Sensor Performance (4JJ3 with DPD)

1. General circuit diagram

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Note

  • The components connected to the ECM may vary depending on the vehicle specifications.

2. ECM outline

3. ECM pin layout

31 pin (A connector)
PIN No.
 Pin function
1
 ECM main relay control
2
 ECM main relay control
3
 Glow plug control signal from ECM
4
 Glow relay control
5
 A/C compressor relay control
6
 Starter cut relay control
7
 -
8
 Stoplight switch 2 signal
9
 Cruise control main switch signal
10
 Clutch switch 1 signal
11
 -
12
 -
13
 -
14
 Neutral switch signal (M/T)
Inhibitor switch signal (A/T)
15
 -
16
 -
17
 -
18
 MIL control
19
 Stoplight switch 1 signal
20
 -
21
 Thermo relay signal (manual A/C)
Refrigerant pressure switch signal (auto A/C)
22
 Vehicle speed signal
23
 Clutch switch 2 signal
24
 Accelerator pedal position sensor 1 low reference
25
 Accelerator pedal position sensor 2 low reference
26
 ECM case ground
27
 Ignition voltage (start)
28
 Glow plug diagnosis signal to ECM
29
 -
30
 Accelerator pedal position sensor 1, 5 volts reference
31
 Accelerator pedal position sensor 2, 5 volts reference
35 pin (B connector)
PIN No.
 Pin function
1
 Ignition voltage (ON)
2
 Battery voltage
3
 Battery voltage
4
 Battery voltage
5
 Battery voltage
6
 Battery voltage
7
 -
8
 Fuel filter switch signal
9
 -
10
 Ground
11
 -
12
 -
13
 Battery voltage
14
 ISO CAN low 1 signal
15
 -
16
 ISO CAN high 1 signal
17
 IAT sensor, Cruise control switch, Clutch pedal stroke sensor and Fuel temperature sensor low reference
18
 -
19
 Charge air cooler temperature sensor 1 low reference
20
 -
21
 -
22
 -
23
 -
24
 MAF sensor low reference
25
 -
26
 -
27
 ECM signal ground
28
 Clutch pedal stroke sensor 5 volts reference
29
 -
30
 -
31
 -
32
 Charge air cooler temperature sensor 1 signal
33
 IAT sensor signal
34
 Charge air cooler temperature sensor 2 signal
35
 ECM signal ground
33 pin (C connector)
PIN No.
 Pin function
1
 ECM power ground
2
 ECM power ground
3
 ECM power ground
4
 ECM power ground
5
 ECM power ground
6
 ECM power ground
7
 ISO CAN low 2 signal
8
 -
9
 ISO CAN high 2 signal
10
 -
11
 -
12
 -
13
 -
14
 -
15
 -
16
 -
17
 Accelerator pedal position sensor 1 shield ground
18
 Accelerator pedal position sensor 2 shield ground
19
 MAF sensor and Clutch pedal stroke sensor shield ground
20
 -
21
 -
22
 Accelerator pedal position sensor 2 signal
23
 -
24
 -
25
 -
26
 -
27
 Accelerator pedal position sensor 1 signal
28
 MAF sensor signal
29
 Clutch pedal stroke sensor signal
30
 Cruise control switch signal
31
 Fuel temperature sensor signal
32
 -
33
 -
32 pin (D connector)
PIN No.
 Pin function
1
 Oil level sensor (oil level) signal
2
 Heated oxygen sensor heater low side
3
 Heated oxygen sensor heater high side
4
 -
5
 -
6
 -
7
 -
8
 -
9
 -
10
 -
11
 -
12
 Swirl control solenoid valve control
13
 EGR cooler bypass control solenoid valve control
14
 -
15
 -
16
 -
17
 -
18
 CMP sensor signal
19
 -
20
 -
21
 Boost pressure sensor signal
22
 -
23
 EGR gas pressure sensor signal
24
 EGR gas temperature sensor 2 signal
25
 -
26
 Oil level sensor (oil temperature) signal
27
 Exhaust differential pressure sensor signal
28
 CKP sensor signal
29
 EGR gas temperature sensor 1 signal
30
 Exhaust gas temperature sensor 2 signal
31
 Engine coolant temperature sensor signal
32
 Exhaust gas temperature sensor 1 signal
35 pin (E connector)
PIN No.
 Pin function
1
 Intake throttle motor 1
2
 Intake throttle motor 2
3
 FRP reduction valve low side
4
 FRP reduction valve high side
5
 PCV low side
6
 PCV high side
7
 Cylinder No. 1 injector solenoid control
8
 -
9
 -
10
 -
11
 -
12
 -
13
 -
14
 -
15
 -
16
 CMP sensor shield ground
17
 FRP sensor shield ground
18
 CKP sensor shield ground
19
 -
20
 -
21
 -
22
 Heated oxygen sensor pump current (IP)
23
 Heated oxygen sensor low reference (VM)
24
 -
25
 Intake throttle position sensor signal
26
 CKP sensor low reference
27
 CMP sensor, FRP sensor, Exhaust gas temperature sensor 2, and Charge air cooler temperature sensor 2 low reference
28
 -
29
 FRP sensor signal
30
 -
31
 Heated oxygen sensor reference voltage (UN)
32
 -
33
 -
34
 -
35
 Boost pressure sensor 5 volts reference
34 pin (F connector)
PIN No.
 Pin function
1
 Cylinder No. 3 injector solenoid control
2
 Cylinder No. 4 injector solenoid control
3
 Cylinder No. 2 injector solenoid control
4
 Cylinder No. 1 injector charge voltage
5
 Cylinder No. 4 injector charge voltage
6
 Cylinder No. 3 injector charge voltage
7
 Cylinder No. 2 injector charge voltage
8
 EGR gas pressure sensor shield ground
9
 -
10
 -
11
 -
12
 -
13
 -
14
 -
15
 -
16
 -
17
 -
18
 Intake throttle position sensor, engine coolant temperature sensor, and EGR gas temperature sensor 2 low reference
19
 Exhaust gas temperature sensor 1, EGR gas pressure sensor, and Exhaust differential pressure sensor low reference
20
 Boost pressure sensor and EGR gas temperature sensor 1 low reference
21
 -
22
 Oil level sensor low reference
23
 -
24
 -
25
 -
26
 -
27
 -
28
 EGR gas pressure sensor and Exhaust differential pressure sensor 5 volts reference
29
 Intake throttle position sensor 5 volts reference
30
 CMP sensor and FRP sensor 5 volts reference
31
 CKP sensor 5 volts reference
32
 -
33
 -
34
 -
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