Nissan Altima HL32 Hybrid. Manual - part 355

EC-404

< COMPONENT DIAGNOSIS >

[QR25DE]

REFRIGERANT PRESSURE SENSOR

>> Repair open circuit or short to ground or short to power in harness or connectors.

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace refrigerant pressure sensor.

NO

>> Repair or replace. 

ECM

EC-405

< ECU DIAGNOSIS >

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ECU DIAGNOSIS

ECM

Reference Value

INFOID:0000000004211658

VALUES ON THE DIAGNOSIS TOOL

NOTE:

• Specification data are reference values.

• Specification data are output/input values which are detected or supplied by the ECM at the connector.

* Specification data may not be directly related to their components signals/values/operations.

i.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show

the specification data in spite of the ignition timing not being adjusted to the specification data. this IGN TIM-

ING monitors the data calculated by the ECM according to the signals input from the camshaft position sen-

sor and other ignition timing related sensors.

• If necessary, activate “INSPECTION MODE 1” (

HBC-104

).

Monitor Item

Condition

Values/Status

ENG SPEED

See

EC-11, "BASIC INSPECTION : Special Repair Requirement"

.

MAS A/F SE-B1

See 

EC-106, "Diagnosis Procedure"

.

B/FUEL SCHDL

See 

EC-106, "Diagnosis Procedure"

.

A/F ALPHA-B1

See 

EC-106, "Diagnosis Procedure"

.

COOLAN TEMP/S

• Engine: After warming up

More than 70

°C (158°F)

A/F SEN1 (B1)

• Engine: After warming up

Maintaining engine speed at 2,500 rpm

Fluctuates around 2.2 V

HO2S2 (B1)

• Revving engine from idle up to 2,500 rpm quickly after the following conditions 

are met.

- Engine: After warming up
- Driving for 3 minutes at a speed of 80 km/h (50 MPH) or more

(Keep the vehicle speed as steady as possible during the cruising.)

0 - 0.3V 

←→ Approx. 0.6 - 

1.0V

HO2S3(B1)

• Engine running after the following conditions are met.
- Engine: After warming up
- Driving for 3 minutes at a speed of 80 km/h (50 MPH) or more

(Keep the vehicle speed as steady as possible during the cruising.)

0 - 1.0V

HO2S2 MNTR(B1)

• Revving engine from idle up to 2,500 rpm quickly after the following conditions 

are met.

- Engine: After warming up
- Driving for 3 minutes at a speed of 80 km/h (50 MPH) or more

(Keep the vehicle speed as steady as possible during the cruising.)

LEAN 

←→ RICH

VHCL SPEED SE

• Turn drive wheels and compare CONSULT-III value with the speedometer in-

dication.

Almost the same speed as 
speedometer indication

BATTERY VOLT

• Ignition switch: ON (Engine stopped)

11 – 14V

TP SEN 1-B1

• Ignition switch: ON
• Selector lever: D

Accelerator pedal: Fully released

More than 0.36V

Accelerator pedal: Fully depressed

Less than 4.75V

TP SEN 2-B1*

• Ignition switch: ON
• Selector lever: D

Accelerator pedal: Fully released

More than 0.36V

Accelerator pedal: Fully depressed

Less than 4.75V

FUEL T/TMP SE

• Ignition switch: ON

Indicates fuel tank tempera-
ture

INT/A TEMP SE

• Ignition switch: ON

Indicates intake air tempera-
ture

EVAP SYS PRES

• Ignition switch: ON

Approx. 1.8 – 4.8V

FUEL LEVEL SE

• Ignition switch: ON

Depending on fuel level of 
fuel tank

START SIGNAL

• INSPECTION MODE
• Ignition switch: ON 

→ ON (READY)

OFF 

→ ON → OFF

EC-406

< ECU DIAGNOSIS >

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ECM

CLSD THL POS

• Ignition switch: ON (READY)

ENG POWER RQST: 0 kW

ON

ENG POWER RQST: Except 0 kW

OFF

AIR COND SIG

• Ignition switch: ON (READY)

Air conditioner switch: OFF

OFF

Air conditioner switch: ON
(Compressor operates.)

ON

P/N POSI SW

• Ignition switch: ON

Selector lever: P or N

ON

Selector lever: Except above

OFF

PW/ST SIGNAL

• Ignition switch: ON

OFF

LOAD SIGNAL

• Ignition switch: ON

Rear window defogger switch: ON
and/or Lighting switch: 2nd position

ON

Rear window defogger switch and lighting 
switch: OFF

OFF

IGNITION SW

• Ignition switch: ON 

→ OFF → ON

ON 

→ OFF → ON

HEATER FAN SW

• Ignition switch: ON (READY)

Heater fan switch: ON

ON

Heater fan switch: OFF

OFF

BRAKE SW

• Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

INJ PULSE-B1

• Engine: After warming up
• Selector lever: P
• No  load

Idle

2.0 – 3.0 msec

2,500 rpm

1.9 – 2.9 msec

IGN TIMING

• Engine: After warming up
• Selector lever: N

Idle

11

° – 21° BTDC

CAL/LD VALUE

• Engine: After warming up
• Selector lever: P
• No  load

Idle

10% – 35%

2,500 rpm

10% – 35%

MASS AIRFLOW

• Engine: After warming up
• Selector lever: P
• No  load

Idle

1.0 – 5.0 g·m/s

2,500 rpm

4.0 – 12.0 g·m/s

PURG VOL C/V

• Engine: After warming up
• 150 seconds or more after turning 

ignition switch ON (READY)

Vehicle speed: 0 km/h (0 MPH)

0%

Vehicle speed: 70 km/h (43 MPH) or more 
(Accelerator pedal: Depressed)

20% – 90%

INT/V TIM(B1)

• Engine: After warming up
• Selector lever: P
• No  load

Idle

Approx. 20

° – 30°CA

INT/V SOL(B1)

• Engine: After warming up
• Selector lever: P
• No  load

Idle

Approx. 50% – 60%

FUEL PUMP RLY

• For 1 seconds after turning ignition switch: ON
• Engine running or cranking

ON

• Except above

OFF

VENT CONT/V

• Ignition switch: ON

OFF

THRTL RELAY

• Ignition switch: ON

ON

HO2S2 HTR (B1)

• Engine speed: Below 3,600 rpm after the following conditions are met.
- Engine: Running after warming up
- Driving for 3 minutes at a speed of 80 km/h (50 MPH) or more

(Keep the vehicle speed as steady as possible during the cruising.)

ON

• Engine speed: Above 3,600 rpm

OFF

Monitor Item

Condition

Values/Status

ECM

EC-407

< ECU DIAGNOSIS >

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HO2S3 HTR(B1)

• Engine speed: Below 3,600 rpm after the following conditions are met.
- Engine: Running after warming up
- Driving for 3 minutes at a speed of 80 km/h (50 MPH) or more

(Keep the vehicle speed as steady as possible during the cruising.)

ON

• Engine speed: Above 3,600 rpm

OFF

VEHICLE SPEED

• Turn drive wheels and compare CONSULT-III value with the speedometer in-

dication.

Almost the same speed as 
the speedometer indication

IDL A/V LEARN

• Engine: running

Idle air volume learning has not been per-
formed yet.

YET

Idle air volume learning has already been 
performed successfully.

CMPLT

TRVL AFTER MIL

• Ignition switch: ON

Vehicle has traveled after MIL has turned 
ON.

0 – 65,535 km
(0 – 40,723 miles)

A/F S1 HTR(B1)

• Engine: After warming up, idle the engine

(More than 140 seconds after starting engine.)

4 – 100%

AC PRESS SEN

• Engine: Idle
• Both A/C switch and blower fan switch: ON (Compressor operates)

1.0 – 4.0V

VHCL SPEED SE

• Turn drive wheels and compare CONSULT-III value with the speedometer in-

dication.

Almost the same speed as 
the speedometer indication

SET VHCL SPD

• Engine: Running

ASCD: Operating

The preset vehicle speed is 
displayed

MAIN SW

• Ignition switch: ON

MAIN switch: Pressed

ON

MAIN switch: Released

OFF

CANCEL SW

• Ignition switch: ON

CANCEL switch: Pressed

ON

CANCEL switch: Released

OFF

RESUME/ACC SW

• Ignition switch: ON

RESUME/ACCELERATE switch: 
Pressed

ON

RESUME/ACCELERATE switch: Re-
leased

OFF

SET SW

• Ignition switch: ON

SET/COAST switch: Pressed

ON

SET/COAST switch: Released

OFF

BRAKE SW1
(ASCD brake switch)

• Ignition switch: ON

Brake pedal: Fully released

ON

Brake pedal: Slightly depressed

OFF

BRAKE SW2
(Stop lamp switch)

• Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

VHCL SPD CUT

• Ignition switch: ON

NON

LO SPEED CUT

• Ignition switch: ON

NON

AT OD MONITOR

• Ignition switch: ON

OFF

AT OD CANCEL

• Ignition switch: ON

OFF

CRUISE LAMP

• Ignition switch: ON

MAIN switch: Pressed at the 1st time 

→ 

at the 2nd time

ON 

→ OFF

SET LAMP

• Ignition switch: ON

OFF

A/F ADJ B1

• Engine: running

-0.330 – 0.330

FAN DUTY

• Engine: Running

0 – 100%

ACCEL PEDAL POSI • Ignition switch: ON

Depending on accelerator 
pedal position

ENG POWER RQST

• Ignition switch: ON (READY)

Depending on signals from 
Hybrid vehicle control ECU

ENG SPEED RQST

• Ignition switch: ON (READY)

Depending on signals from 
Hybrid vehicle control ECU

Monitor Item

Condition

Values/Status