Nissan Titan A60. Manual - part 443

 

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Nissan Titan A60. Manual - part 443

 

 

EC-438

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

ASCD INDICATOR

ASCD INDICATOR

Component Description

INFOID:0000000006158920

ASCD indicator lamp illuminates to indicate ASCD operation status. Lamp has two indicators, CRUISE and

SET, and is integrated in combination meter.

CRUISE indicator illuminates when MAIN switch on ASCD steering switch is turned ON to indicate that ASCD

system is ready for operation.

SET indicator illuminates when following conditions are met. 

• CRUISE indicator is illuminated.

• SET/COAST switch on ASCD steering switch is turned ON while vehicle speed is within the range of ASCD

setting.

SET indicator remains lit during ASCD control.

Refer to 

EC-28

 for the ASCD function.

Diagnosis Procedure

INFOID:0000000006158921

1.

CHECK OVERALL FUNCTION

Check ASCD indicator under the following conditions.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

2.

CHECK DTC

Check that DTC U0101 or U1001 is not displayed.
OK or NG

OK

>> GO TO 3.

NG

>> Perform trouble diagnosis for DTC U0101, U1001. Refer to 

EC-140

.

3.

 CHECK COMBINATION METER FUNCTION

Refer to 

MWI-28, "CONSULT-III Function (METER/M&A)"

.

OK or NG

OK

>> GO TO 4.

NG

>> Go to 

MWI-93, "Removal and Installation"

.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "How to Check Terminal"

 and 

GI-39, "Intermittent Incident"

.

>> INSPECTION END

ASCD INDICATOR

CONDITION

SPECIFICATION

CRUISE LAMP

• Ignition switch: ON

• MAIN switch: Pressed at the 1st 

time 

→ at the 2nd time

ON 

→ OFF

SET LAMP

• MAIN switch: ON
• When vehicle speed is between 

40 km/h (25 MPH) and 144 km/h 
(89 MPH)

• ASCD: Operating

ON

• ASCD: Not operating

OFF

COOLING FAN

EC-439

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

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COOLING FAN

Diagnosis Procedure

INFOID:0000000006158922

1.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector E120.

3. Check voltage between IPDM E/R terminal 22 and ground with

CONSULT-III or tester.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2.

DETECT MALFUNCTIONING PART

Check the following.

• 40A fusible link

• Harness for open or short between IPDM E/R and battery

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

3.

CHECK COOLING FAN MOTOR CIRCUIT FOR OPEN OR SHORT

1. Disconnect cooling fan motor harness connector (1).

2. Check harness continuity between cooling fan motor terminal 1

and IPDM E/R terminal 24, cooling fan motor terminal 2 and

body ground.

Refer to wiring diagram.

3. Also check harness for short to ground and short to power.
OK or NG

OK

>> GO TO 4.

NG

>> Repair open circuit or short to ground or short to power

in harness or connectors.

4.

CHECK COOLING FAN MOTOR

Refer to 

EC-439, "Component Inspection"

.

OK or NG

OK

>> GO TO 5.

NG

>> Replace cooling fan motor.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "How to Check Terminal"

 and 

GI-39, "Intermittent Incident"

.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace harness connectors.

Component Inspection

INFOID:0000000006158923

COOLING FAN MOTOR

1. Disconnect cooling fan motor harness connector.

Voltage: Battery voltage

PBIB2067E

Continuity should exist.

BBIA0742E

EC-440

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

COOLING FAN

2. Supply cooling fan motor terminals with battery voltage and

check operation.

Cooling fan motor should operate.

If NG, replace cooling fan motor.

AWBIA0529ZZ

ELECTRICAL LOAD SIGNAL

EC-441

< DTC/CIRCUIT DIAGNOSIS >

[VK56DE]

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ELECTRICAL LOAD SIGNAL

Description

INFOID:0000000006158924

The electrical load signal (Headlamp switch signal, etc.) is transferred through the CAN communication line

from BCM to ECM via IPDM E/R.

Diagnosis Procedure

INFOID:0000000006158925

1.

CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I

1. Turn ignition switch ON.

2. Connect CONSULT-III and select “DATA MONITOR” mode.

3. Select “LOAD SIGNAL” and check indication under the following conditions.

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 4.

2.

CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II

Check “LOAD SIGNAL” indication under the following conditions.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 5.

3.

CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION

Select “HEATER FAN SW” and check indication under the following conditions.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 6.

4.

CHECK REAR WINDOW DEFOGGER SYSTEM

Refer to 

DEF-46, "Filament Check"

.

>> INSPECTION END

5.

CHECK HEADLAMP SYSTEM

Refer to 

EXL-139, "Removal and Installation"

.

>> INSPECTION END

6.

CHECK HEATER FAN CONTROL SYSTEM

Refer to 

HAC-17, "CONSULT-III Function (HVAC)"

 (with automatic air conditioner) or 

HAC-111, "CONSULT-III

Function (HVAC)"

 (with manual air conditioner).

Condition

Indication

Rear window defogger switch: ON

ON

Rear window defogger switch: OFF

OFF

Condition

Indication

Lighting switch: ON at 2nd position

ON

Lighting switch: OFF

OFF

Condition

Indication

Heater fan control switch: ON

ON

Heater fan control switch: OFF

OFF

 

 

 

 

 

 

 

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