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Nissan Frontier D40. Manual - part 437

ECM

EC-439

< ECU DIAGNOSIS >

[QR25DE]

EVAP
SYSTEM

39H

EVAP control system leak
(Cap Off)

P0455

80H

0CH

Difference in pressure sensor output
voltage before and after pull down

3BH

EVAP control system leak
(Small leak)

P0442

80H

05H

Leak area index (for more than 0.04
inch)

3CH

EVAP control system leak
(Very small leak)

P0456

80H

05H

Leak area index (for more than 0.02
inch)

P0456

81H

FDH

Maximum internal pressure of EVAP
system during monitoring

P0456

82H

FDH

Internal pressure of EVAP system at the
end of monitoring

3DH

Purge flow system

P0441

83H

0CH

Difference in pressure sensor output
voltage before and after vent control
valve close

O2 SEN-
SOR
HEATER

41H

A/F sensor 1 heater
(Bank 1)

Low Input:P0031

High Input:P0032

81H

0BH

Converted value of Heater electric cur-
rent to voltage

42H

Heated oxygen sensor 2 heat-
er (Bank 1)

Low Input:P0037

High Input:P0038

80H

0CH

Converted value of Heater electric cur-
rent to voltage

43H

Heated oxygen sensor 3 heat-
er (Bank 1)

P0043

80H

0CH

Converted value of Heater electric cur-
rent to voltage

45H

A/F sensor 1 heater
(Bank 2)

Low Input:P0051

High Input:P0052

81H

0BH

Converted value of Heater electric cur-
rent to voltage

46H

Heated oxygen sensor 2 heat-
er (Bank 2)

Low Input:P0057

High Input:P0058

80H

0CH

Converted value of Heater electric cur-
rent to voltage

47H

Heated oxygen sensor 3 heat-
er (Bank 2)

P0063

80H

0CH

Converted value of Heater electric cur-
rent to voltage

Second-
ary Air

71H

Secondary Air system

P0411

80H

01H

Secondary Air Injection System Incor-
rect Flow Detected

Bank1: P0491
Bank2: P0492

81H

01H

Secondary Air Injection System Insuffi-
cient Flow

P2445

82H

01H

Secondary Air Injection System Pump
Stuck Off

P2448

83H

01H

Secondary Air Injection System High
Airflow

Bank1: P2440
Bank2: P2442

84H

01H

Secondary Air Injection System Switch-
ing Valve Stuck Open

P2440

85H

01H

Secondary Air Injection System Switch-
ing Valve Stuck Open

P2444

86H

01H

Secondary Air Injection System Pump
Stuck On

FUEL
SYSTEM

81H

Fuel injection system function
(Bank 1)

P0171 or P0172

80H

2FH

Long term fuel trim

P0171 or P0172

81H

24H

The number of lambda control clamped

82H

Fuel injection system function
(Bank 2)

P0174 or P0175

80H

2FH

Long term fuel trim

P0174 or P0175

81H

24H

The number of lambda control clamped

Item

OBD-

MID

Self-diagnostic test item

DTC

Test value and Test

limit

(GST display)

Description

TID

Unit and

Scaling

EC-440

< ECU DIAGNOSIS >

[QR25DE]

ECM

MISFIRE

A1H

Multiple Cylinder Misfires

P0301

80H

24H

Misfiring counter at 1000 revolution of
the first cylinder

P0302

81H

24H

Misfiring counter at 1000 revolution of
the second cylinder

P0303

82H

24H

Misfiring counter at 1000 revolution of
the third cylinder

P0304

83H

24H

Misfiring counter at 1000 revolution of
the fourth cylinder

P0305

84H

24H

Misfiring counter at 1000 revolution of
the fifth cylinder

P0306

85H

24H

Misfiring counter at 1000 revolution of
the sixth cylinder

P0307

86H

24H

Misfiring counter at 1000 revolution of
the seventh cylinder

P0308

87H

24H

Misfiring counter at 1000 revolution of
the eighth cylinder

P0300

88H

24H

Misfiring counter at 1000 revolution of
the multiple cylinders

P0301

89H

24H

Misfiring counter at 200 revolution of the
first cylinder

P0302

8AH

24H

Misfiring counter at 200 revolution of the
second cylinder

P0303

8BH

24H

Misfiring counter at 200 revolution of the
third cylinder

P0304

8CH

24H

Misfiring counter at 200 revolution of the
fourth cylinder

P0305

8DH

24H

Misfiring counter at 200 revolution of the
fifth cylinder

P0306

8EH

24H

Misfiring counter at 200 revolution of the
sixth cylinder

P0307

8FH

24H

Misfiring counter at 200 revolution of the
seventh cylinder

P0308

90H

24H

Misfiring counter at 200 revolution of the
eighth cylinder

P0300

91H

24H

Misfiring counter at 1000 revolution of
the single cylinder

P0300

92H

24H

Misfiring counter at 200 revolution of the
single cylinder

P0300

93H

24H

Misfiring counter at 200 revolution of the
multiple cylinders

Item

OBD-

MID

Self-diagnostic test item

DTC

Test value and Test

limit

(GST display)

Description

TID

Unit and

Scaling

ECM

EC-441

< ECU DIAGNOSIS >

[QR25DE]

HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION

How to Erase DTC

With CONSULT-III

NOTE:
• If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at

least 10 seconds and then turn it ON (engine stopped) again.

• If the DTC is not for A/T related items (see

EC-424

), skip step 1.

Erase DTC in TCM. Refer to

TM-149, "OBD-II Diagnostic Trouble Code (DTC)"

Select “ENGINE” with CONSULT-III.

Select “SELF-DIAG RESULTS”.

MISFIRE

A2H

No. 1 Cylinder Misfire

P0301

0BH

24H

EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles

P0301

0CH

24H

Misfire counts for last/current driving cy-
cles

A3H

No. 2 Cylinder Misfire

P0302

0BH

24H

EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles

P0302

0CH

24H

Misfire counts for last/current driving cy-
cles

A4H

No. 3 Cylinder Misfire

P0303

0BH

24H

EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles

P0303

0CH

24H

Misfire counts for last/current driving cy-
cles

A5H

No. 4 Cylinder Misfire

P0304

0BH

24H

EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles

P0304

0CH

24H

Misfire counts for last/current driving cy-
cles

A6H

No. 5 Cylinder Misfire

P0305

0BH

24H

EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles

P0305

0CH

24H

Misfire counts for last/current driving cy-
cles

A7H

No. 6 Cylinder Misfire

P0306

0BH

24H

EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles

P0306

0CH

24H

Misfire counts for last/current driving cy-
cles

A8H

No. 7 Cylinder Misfire

P0307

0BH

24H

EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles

P0307

0CH

24H

Misfire counts for last/current driving cy-
cles

A9H

No. 8 Cylinder Misfire

P0308

0BH

24H

EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles

P0308

0CH

24H

Misfire counts for last/current driving cy-
cles

Item

OBD-

MID

Self-diagnostic test item

DTC

Test value and Test

limit

(GST display)

Description

TID

Unit and

Scaling

EC-442

< ECU DIAGNOSIS >

[QR25DE]

ECM

Touch “ERASE”. (DTC in ECM will be erased.)

With GST

NOTE:
• If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF.once.Wait at least

10 seconds and then turn it ON (engine stopped) again.

Select Service $04 with GST (Generic Scan Tool).

No Tools

NOTE:
• If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once.Wait at

least 10 seconds and then turn it ON (engine stopped) again.

Erase DTC in ECM. Refer to How To ERASE DIAGNOSTIC TEST MODE II (SELF-DIAGNOSTIC
RESULTS).

NOTE:
• If the battery is disconnected, the emission-related diagnostic information will be cleared within 24

hours.

• The following data are cleared when the ECM memory is erased.
- Diagnostic trouble codes
- 1st trip diagnostic trouble codes
- Freeze frame data
- 1st trip freeze frame data
- System readiness test (SRT) codes
- Test values
• Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but

all of the data listed above, are cleared from the ECM memory during work procedures.

Content .. 435 436 437 438 ..