Nissan Frontier D22. Manual - part 543

TROUBLE DIAGNOSIS

EC-1275

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

101

OR/L

IACV-AAC valve

[Engine is running]

●

Warm-up condition

●

Idle speed

NOTE:
The pulse cycle changes depending on rpm at 
idle

8 - 11V

[Engine is running]

●

Warm-up condition

●

Engine speed is 3,000 rpm

7 - 10V

102
104
106
109

111

113

W/B
 W/R
W/G
W/L
W/PU
W

Injector No. 1
Injector No. 3
Injector No. 5
Injector No. 2
Injector No. 4
Injector No. 6

[Engine is running]

●

Warm-up condition

●

Idle speed

NOTE:
The pulse cycle changes depending on rpm at 
idle

BATTERY VOLTAGE

(11 - 14V)

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

BATTERY VOLTAGE

(11 - 14V)

108

R/G

EVAP canister vent 
control valve

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

116

B/R

ECM ground

[Engine is running]

●

Idle speed

Engine ground

117

B/P

Current return

[Engine is running]

●

Idle speed

BATTERY VOLTAGE
(11 - 14V)

119

BR/Y

Heated oxygen sensor 
1 heater (bank 1)

[Engine is running]

●

Engine speed is below 2,800 rpm

Approximately 0.4V

[Engine is running]

●

Engine speed is above 2,800 rpm

BATTERY VOLTAGE
(11 - 14V)

120

P/B

Vacuum cut valve 
bypass valve

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

121

BR

Heated oxygen sensor 
1 heater (bank 2)

[Engine is running]

●

Engine speed is below 2,800 rpm

Approximately 0.4V

[Engine is running]

●

Engine speed is above 2,800 rpm

BATTERY VOLTAGE
(11 - 14V)

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

SEF005V

SEF692W

SEF007V

SEF008V

EC-1276

[VG33ER]

TROUBLE DIAGNOSIS

*: Any mode except OFF, ambient air temperature is above 25

°C (77°F).

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

CONSULT-II Function

UBS00DSC

FUNCTION

*: The following emission-related diagnostic information is 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

●

Others

122

R/B

Heated oxygen sensor 
2 heater (bank 1)

[Engine is running]

●

Engine speed is below 3,600 rpm after the fol-
lowing conditions are met

–

Engine: After warning up

–

Keeping the engine speed between 3,500 and 
4,000 rpm for 1 minute and at idle for 1 minute 
under no load

0 - 1.0V

[Ignition switch: ON] 

●

Engine stopped

[Engine is running]

●

Engine speed is above 3,600 rpm

BATTERY VOLTAGE
(11 - 14V)

123

R/Y

Heated oxygen sensor 
2 heater (bank 2)

[Engine is running]

●

Engine speed is below 3,600 rpm after the fol-
lowing conditions are met

–

Engine: After warning up

–

Keeping the engine speed between 3,500 and 
4,000 rpm for 1 minute and at idle for 1 minute 
under no load

0 - 1.0V

[Ignition switch: ON]

●

Engine stopped

[Engine is running]

●

Engine speed is above 3,600 rpm

BATTERY VOLTAGE
(11 - 14V)

124

B/R

ECM ground

[Engine is running]

●

Idle speed

Engine ground

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

Diagnostic test mode

Function

Work support

This mode enables a technician to adjust some devices faster and more accurately by following the 
indications on the CONSULT-II unit.

Self-diagnostic results

Self-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data 
can be read and erased quickly.*

Data monitor

Input/Output data in the ECM can be read.

Data monitor (SPEC)

Input/Output specification of the basic fuel schedule, AFM, A/F feedback control value and the other 
data monitor items can be read.

Active test

Diagnostic Test Mode in which CONSULT-II drives some actuators apart from the ECMs and also 
shifts some parameters in a specified range.

DTC & SRT confirmation

The status of system monitoring tests and the self-diagnosis status/result can be confirmed.

Function test

This mode is used to inform customers when their vehicle condition requires periodic maintenance.

ECM part number

ECM part number can be read.

TROUBLE DIAGNOSIS

EC-1277

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION

X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The items appear on CONSULT-II screen in freeze frame data
mode only if a 1st trip DTC or DTC is detected. For details, refer to 

EC-1279, "Freeze Frame Data and 1st Trip Freeze Frame Data"

 .

Item

DIAGNOSTIC TEST MODE

WORK 

SUP-

PORT

SELF-DIAGNOS-

TIC RESULTS

DATA 

MONI-

TOR

DATA 

MONI-

TOR 

(SPEC)

 

ACTIVE 

TEST

DTC & SRT CON-

FIRMATION

DTC*1

FREEZE 

FRAME 
DATA*2

SRT 

STA-

TUS

DTC 

WORK 

SUP-

PORT

ENGINE CONTROL 

COMPONENT P

ARTS

IN
P

U

T

Camshaft position sensor

×

×

×

×

Mass air flow sensor

×

×

×

Engine coolant temperature sensor

×

×

×

×

×

Heated oxygen sensor 1

×

×

×

×

×

Heated oxygen sensor 2

×

×

×

×

×

Vehicle speed sensor

×

×

×

×

Throttle position sensor

×

×

×

×

Fuel tank temperature sensor

×

×

×

×

EVAP control system pressure 
sensor

×

×

×

Intake air temperature sensor

×

×

×

×

Crankshaft position sensor (OBD)

×

Knock sensor

×

Ignition switch (start signal)

×

×

Closed throttle position switch

×

×

×

Closed throttle position switch 
(throttle position sensor signal)

×

×

Air conditioner switch

×

×

Park/neutral position (PNP) switch

×

×

×

Power steering oil pressure switch

×

×

Battery voltage 

×

×

Ambient air temperature switch

×

×

ENGINE CONTROL 

COMPONENT P

ARTS

OUTPUT

Injectors

×

×

×

Power transistor (Ignition timing)

×

×

×

×

IACV-AAC valve

×

×

×

×

×

EVAP canister purge volume con-
trol solenoid valve

×

×

×

×

×

Air conditioner relay

×

×

Fuel pump relay

×

×

×

×

Heated oxygen sensor 1 heater

×

×

×

×

Heated oxygen sensor 2 heater

×

×

×

×

EVAP canister vent control valve

×

×

×

×

Vacuum cut valve bypass valve

× 

×

×

×

× 

SCB valve control solenoid valve

×

×

×

×

Calculated load value

×

×

×

EC-1278

[VG33ER]

TROUBLE DIAGNOSIS

INSPECTION PROCEDURE

1.

Turn ignition switch OFF.

2.

Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector which is located under LH dash panel near the
fuse box cover.

3.

Turn ignition switch ON.

4.

Touch “START (NISSAN BASED VHCL)”.

5.

Touch “ENGINE”.
If  “ENGINE” is not indicated, go to 

GI-36, "CONSULT-II Data

Link Connector (DLC) Circuit"

 .

6.

Perform each diagnostic test mode according to each service
procedure.

For further information, see the CONSULT-II Operation Manual.

LEC104A

MBIB0233E

SEF948Y

SEF949Y