Qashqai J11. Engine control system (MR20DD) - part 25

ECM-386

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

IGNITION SIGNAL

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK CONDENSER POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connector.

3.

Check the continuity between IPDM E/R harness connector and condenser harness connector.

4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> Perform trouble diagnosis for power supply circuit.

NO

>> Repair or replace malfunctioning part.

3.

CHECK CONDENSER GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between condenser harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace malfunctioning part.

4.

CHECK CONDENSER

Check condenser. Refer to 

ECM-190, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace condenser.

5.

CHECK IGNITION COIL POWER SUPPLY

1.

Reconnect all harness connectors disconnected.

2.

Disconnect ignition coil harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between ignition coil harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace malfunctioning part.

+

−

Continuity

IPDM E/R

Condenser

Connector

Terminal

Connector

Terminal

F90

96

F200

1

Existed

+

−

Continuity

Condenser

Connector

Terminal

F200

2

Ground

Existed

+

−

Voltage

Ignition coil

Cylinder

Connector

Terminal

1

F24

3

Ground

Battery voltage

2

F25

3

3

F26

3

4

F27

3

IGNITION SIGNAL

ECM-387

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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ECM

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6.

CHECK IGNITION COIL GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between ignition coil harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace malfunctioning part.

7.

CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT

1.

Disconnect ECM harness connector.

2.

Check the continuity between ignition coil harness connector and ECM harness connector.

3.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace malfunctioning part.

8.

CHECK IGNITION COIL WITH POWER TRANSISTOR

Check ignition coil with power transistor. Refer to 

ECM-387, "Component Inspection (Ignition Coil With Power

Transistor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Replace malfunctioning ignition coil with power transistor. Refer to 

EM-170, "Exploded View"

.

Component Inspection (Ignition Coil With Power Transistor)

INFOID:0000000010703072

1.

CHECK IGNITION COIL WITH POWER TRANSISTOR-1

1.

Turn ignition switch OFF.

2.

Disconnect ignition coil harness connector.

3.

Check resistance between ignition coil terminals as per the following.

+

−

Continuity

Ignition coil

Cylinder

Connector

Terminal

1

F24

2

Ground

Existed

2

F25

2

3

F26

2

4

F27

2

+

−

Continuity

Ignition coil

ECM

Cylinder

Connector

Terminal

Connector

Terminal

1

F24

1

F16

78

Existed

2

F25

1

82

3

F26

1

86

4

F27

1

90

ECM-388

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

IGNITION SIGNAL

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace malfunctioning ignition coil with power transistor. Refer to 

EM-170, "Exploded View"

.

2.

CHECK IGNITION COIL WITH POWER TRANSISTOR-2

CAUTION:

Perform the following procedure in a place with no combustible objects and good ventilation.
1.

Reconnect all harness connectors disconnected.

2.

Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.

3.

Start engine.

4.

After engine stalls, crank it 2 or 3 times to release all fuel pressure.

5.

Turn ignition switch OFF.

6.

Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.

7.

Remove ignition coil and spark plug of the cylinder to be checked. Refer to 

EM-170, "Exploded View"

.

8.

Crank engine for 5 seconds or more to remove combustion gas in the cylinder.

9.

Connect spark plug and harness connector to ignition coil.

10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -

0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.

11. Crank engine for approximately 3 seconds, and check whether

spark is generated between the spark plug and the grounded
metal portion.

CAUTION:

• During the operation, always stay 0.5 m (19.7 in) or more

away from the spark plug and the ignition coil. Be careful
not to get an electrical shock while checking, because the
electrical discharge voltage becomes 20 kV or more.

• It might cause to damage the ignition coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the spark might be generated even if the coil is malfunctioning.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning ignition coil with power transistor. Refer to 

EM-170, "Exploded View"

.

Component Inspection (Condenser)

INFOID:0000000010703073

1.

CHECK CONDENSER

1.

Turn ignition switch OFF.

2.

Disconnect condenser harness connector.

3.

Check resistance between condenser terminals as per the following.

Ignition coil

Resistance 

Ω

 [at 25

°

C (77

°

F)]

+

−

Terminal

1

2

Except 0 or 

∞

 

Ω

3

Except 0 

Ω

2

3

Spark should be generated.

JMBIA0066GB

IGNITION SIGNAL

ECM-389

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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ECM

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Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace condenser.

Condenser

Resistance M

Ω

 [at 25

°

C (77

°

F)]

+

−

Terminal

1

2

Above 1

ECM-390

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

ELECTRICAL LOAD SIGNAL

ELECTRICAL LOAD SIGNAL

Description

INFOID:0000000010703074

The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred
from BCM via the CAN communication through IPDM E/R to ECM.

Component Function Check

INFOID:0000000010703075

1.

CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” of “ENGINE” with CONSULT.

3.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Proceed to 

ECM-390, "Diagnosis Procedure"

.

2.

CHECK LIGHTING SWITCH FUNCTION

Check “LOAD SIGNAL” indication under the following conditions.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Proceed to 

ECM-390, "Diagnosis Procedure"

.

3.

CHECK HEATER FAN CONTROL SWITCH FUNCTION

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

ECM-390, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010703076

1.

INSPECTION START

Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to 

ECM-390, "Com-

ponent Function Check"

.

Which circuit is related to the incident?

Rear window defogger>>GO TO 2.
Headlamp>>GO TO 3.
Heater fan>>GO TO 4.

2.

CHECK REAR WINDOW DEFOGGER SYSTEM

Check rear window defogger system. Refer to 

DEF-22, "Work Flow"

.

Monitor item

Condition

Indication

LOAD SIGNAL

Rear window defogger 
switch

ON

ON

OFF

OFF

Monitor item

Condition

Indication

LOAD SIGNAL

Lighting switch

ON at 2nd 
position

ON

OFF

OFF

Monitor item

Condition

Indication

HEATER FAN SW

Heater fan control switch

ON

ON

OFF

OFF

ELECTRICAL LOAD SIGNAL

ECM-391

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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>> INSPECTION END

3.

CHECK HEADLAMP SYSTEM

Check headlamp system. Refer to 

EXL-70, "Work Flow"

 (LED type), 

EXL-242, "Work Flow"

 (halogen type).

>> INSPECTION END

4.

CHECK HEATER FAN CONTROL SYSTEM

Check heater fan control system. Refer to 

HAC-68, "Work Flow"

 (With automatic air conditioning) 

HAC-182,

"Work Flow"

 (With manual air conditioning).

>> INSPECTION END

ECM-392

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

SENSOR POWER SUPPLY 2 CIRCUIT

SENSOR POWER SUPPLY 2 CIRCUIT

Description

INFOID:0000000010703077

ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respec-
tively.Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simulta-
neously in the sensors belonging to the same group as the short-circuited sensor.

Sensor power supply 1

• CKP sensor (POS)
• APP sensor 1
• Exhaust valve timing control position sensor
• Electric throttle control actuator
NOTE:
If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.

Sensor power supply 2

• Barometric pressure sensor
• Refrigerant pressure sensor
• Fuel rail pressure sensor
• CMP sensor
• APP sensor 2
• Engine oil pressure sensor

Diagnosis Procedure

INFOID:0000000010703078

1.

CHECK ACCELERATOR PEDAL POSITION SENSOR 2 POWER SUPPLY CIRCUIT-1

1.

Turn ignition switch OFF.

2.

Disconnect accelerator pedal position (APP) sensor harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between APP sensor harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK ACCELERATOR PEDAL POSITION SENSOR 2 POWER SUPPLY CIRCUIT-2

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between APP sensor harness connector and ECM harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning part.

3.

CHECK SENSOR POWER SUPPLY 2 CIRCUIT

Check harness for short to power and short to ground, between the following terminals.

+

−

Voltage

(Approx.)

APP sensor

Connector

Terminal

E20

5

Ground

5 V

+

−

Continuity

APP sensor

ECM

Connector

Terminal

Connector

Terminal

E20

5

E57

118

Existed

SENSOR POWER SUPPLY 2 CIRCUIT

ECM-393

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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ECM

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Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace malfunctioning part.

4.

CHECK COMPONENTS

Check the following.
• Refrigerant pressure sensor (Refer to 

ECM-394, "Diagnosis Procedure"

)

• Fuel rail pressure sensor (Refer to 

ECM-242, "Component Inspection"

)

• Engine oil pressure sensor (Refer to 

ECM-290, "Component Inspection"

)

• Barometric pressure sensor (Refer to 

ECM-187, "Component Inspection"

)

• CMP sensor (Refer to 

ECM-266, "Component Inspection"

)

• Exhaust valve timing control position sensor (Refer to 

ECM-315, "Component Inspection"

)

Is the inspection result normal?

YES

>> Proceed to 

GI-41, "Intermittent Incident"

.

NO

>> Replace malfunctioning part.

+

−

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

E57

101

Barometric pressure sensor

F144

1

118

APP sensor 2

E20

5

F15

23

Refrigerant pressure sensor

E41

3

Engine oil pressure sensor

F117

3

Fuel rail pressure sensor

F95

1

43

CMP sensor

F37

1

ECM-394

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

REFRIGERANT PRESSURE SENSOR

REFRIGERANT PRESSURE SENSOR

Component Function Check

INFOID:0000000010703079

1.

CHECK REFRIGERANT PRESSURE SENSOR FUNCTION

1.

Start engine and warm it up to normal operating temperature.

2.

Turn A/C switch and blower fan switch ON.

3.

Check the voltage between ECM harness connector terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

ECM-394, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010703080

1.

CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect refrigerant pressure sensor harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between refrigerant pressure sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

2.

Disconnect ECM harness connector.

3.

Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.

4.

Also check harness for short to power.

Is the inspection result normal?

YES

>> Perform trouble diagnosis for power supply circuit.

NO

>> Repair or replace malfunctioning part.

3.

CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT

1.

Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.

ECM

Voltage

Connector

+

–

Terminal

F15

34

39

1.0 - 4.0 V

+

−

Voltage

(Approx.)

Refrigerant pressure sensor

Connector

Terminal

E41

3

Ground

5 V

+

−

Continuity

Refrigerant pressure sensor

ECM

Connector

Terminal

Connector

Terminal

E41

3

F15

23

Existed

REFRIGERANT PRESSURE SENSOR

ECM-395

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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2.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace malfunctioning part.

4.

CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT

1.

Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.

2.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace malfunctioning part.

5.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace refrigerant pressure sensor. Refer to 

HA-36, "REFRIGERANT PRESSURE SENSOR :

Removal and Installation"

.

NO

>> Repair or replace malfunctioning part.

+

−

Continuity

Refrigerant pressure sensor

ECM

Connector

Terminal

Connector

Terminal

E41

1

F15

39

Existed

+

−

Continuity

Refrigerant pressure sensor

ECM

Connector

Terminal

Connector

Terminal

E41

2

F15

34

Existed

ECM-396

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

COOLING FAN

COOLING FAN

Component Function Check

INFOID:0000000010703081

1.

CHECK COOLING FAN FUNCTION

With CONSULT

1.

Turn ignition switch ON.

2.

Perform “COOLING FAN (DUAL)” in “ACTIVE TEST” mode of “IPDM E/R” using CONSULT.

3.

Touch “LOW”,  “HI” on the CONSULT screen.

4.

Check that cooling fan operates.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

ECM-396, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010703082

1.

CHECK COOLING FAN RELAY POWER SUPPLY CIRCUIT-1

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan relay-2.

3.

Check the voltage between cooling fan relay-2 harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform trouble diagnosis for power supply circuit.

2.

CHECK COOLING FAN RELAY POWER SUPPLY CIRCUIT-2

Check the voltage between cooling fan relay-2 harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform trouble diagnosis for power supply circuit.

3.

CHECK COOLING FAN RELAY OUTPUT SIGNAL CIRCUIT

1.

Disconnect IPDM E/R harness connector.

2.

Check the continuity between cooling fan relay-2 harness connector and IPDM E/R harness connector.

3.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

+

−

Voltage

Cooling fan relay-2

Connector

Terminal

F69

3

Ground

Battery voltage

+

−

Voltage

Cooling fan relay-2

Connector

Terminal

F69

1

Ground

Battery voltage

+

−

Continuity

Cooling fan relay-2

IPDM E/R

Connector

Terminal

Connector

Terminal

F69

4

F89

90

Existed

COOLING FAN

ECM-397

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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4.

CHECK COOLING FAN MOTOR CIRCUIT-1

1.

Check the continuity between cooling fan relay-2 harness connector and cooling fan motor harness con-
nector.

2.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK COOLING FAN MOTOR CIRCUIT-2

1.

Check the continuity between IPDM E/R harness connector and cooling fan motor-2 harness connector.

2.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 6.

6.

CHECK COOLING FAN MOTOR CIRCUIT-3

1.

Disconnect cooling fan resistor.

2.

Check the continuity between cooling fan resistor harness connector and cooling fan motor harness con-
nector.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK COOLING FAN MOTOR CIRCUIT-4

1.

Check the continuity between IPDM E/R harness connector and cooling fan resistor harness connector.

2.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts.

8.

CHECK COOLING FAN RESISTOR

+

−

Continuity

Cooling fan relay-2

Cooling fan motor

Connector

Terminal

Connector

Terminal

F69

2

F39

1

Exisited

+

−

Continuity

IPDM E/R

Cooling fan motor

Connector

Terminal

Connector

Terminal

F88

69

F39

1

Existed

+

−

Continuity

Cooling fan resistor

Cooling fan motor

Connector

Terminal

Connector

Terminal

F68

2

F39

1

Existed

+

−

Continuity

IPDM E/R

Cooling fan resistor

Connector

Terminal

Connector

Terminal

F88

69

F68

1

Existed

ECM-398

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

COOLING FAN

Check cooling fan resistor. Refer to 

ECM-399, "Component Inspection (Cooling Fan Resistor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Replace cooling fan resistor. Refer to 

CO-47, "Exploded View"

.

9.

CHECK COOLING FAN MOTOR CIRCUIT-3

1.

Check the continuity between cooling fan motor harness connector and ground.

2.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace error-detected parts.

10.

CHECK COOLING FAN RELAY-2

Refer to 

ECM-399, "Component Inspection (Cooling Fan Relay)"

.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Replace malfunctioning cooling fan relay.

11.

CHECK COOLING FAN MOTOR

Refer to 

ECM-398, "Component Inspection (Cooling Fan Motor)"

.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> Replace malfunctioning cooling fan motor. Refer to 

CO-47, "Removal and Installation"

.

12.

CHECK INTERMITTENT INCIDENT

Perform 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-67, "Removal and Installation"

.

NO

>> Repair or replace error-detected parts.

Component Inspection (Cooling Fan Motor)

INFOID:0000000010703083

1.

CHECK COOLING FAN MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan motor harness connector.

3.

Supply cooling fan motor terminals with battery voltage and check operation.

Check that cooling fan speed of condition B is higher than that of A.

Is the inspection result normal?

+

−

Continuity

Cooling fan motor

Connector

Terminal

F39

2

Ground

Existed

Cooling fan motor

Condition

Terminal

+

–

1

3 and 4

A

2

3 and 4

1 and 2

3

1 and 2

4

1, 2

3, 4

B

COOLING FAN

ECM-399

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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A

ECM

N

P

O

YES

>> INSPECTION END

NO

>> Replace cooling fan motor. Refer to 

CO-47, "Removal and Installation"

.

Component Inspection (Cooling Fan Relay)

INFOID:0000000010703084

1.

CHECK COOLING FAN RELAYS

1.

Turn ignition switch OFF.

2.

Remove cooling fan relay-2.

3.

Check the continuity between cooling fan relay-2 terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace cooling fan relay.

Component Inspection (Cooling Fan Resistor)

INFOID:0000000010715435

1.

CHECK COOLING FAN RESISTOR

1.

Disconnect cooling fan resistor connector.

2.

Check resistance between cooling fan resistor terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace cooling fan resistor. Refer to 

CO-47, "Exploded View"

.

Cooling fan relay-2

Conditions

Continuity

+

−

Terminal

1

2

12V direct current supply between terminals 3 and 4

Existed

No current supply

Not existed

Cooling fan resistor

Resistance

+

−

Terminal

1

2

0.72 – 0.88 

Ω

ECM-400

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

MALFUNCTION INDICATOR LAMP (MIL)

MALFUNCTION INDICATOR LAMP (MIL)

Component Function Check

INFOID:0000000010703085

1.

CHECK MIL FUNCTION

1.

Turn ignition switch ON.

2.

Check that MIL illuminates.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

ECM-400, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010703086

1.

CHECK DTC

Check that DTC UXXXX is not displayed.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform trouble diagnosis for DTC UXXXX. Refer to 

ECM-148, "Diagnosis Procedure"

.

2.

CHECK COMBINATION METER FUNCTION

Perform self-diagnosis for combination meter. Refer to 

MWI-39, "DTC Index"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform the trouble diagnosis for the detected DTC.

3.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-80, "Removal and Installation"

.

NO

>> Repair or replace malfunctioning part.

INFORMATION DISPLAY (ASCD)

ECM-401

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

INFORMATION DISPLAY (ASCD)

Component Function Check

INFOID:0000000010703087

1.

CHECK INFORMATION DISPLAY

1.

Start engine.

2.

Press MAIN switch on ASCD steering switch.

3.

Drive the vehicle at more than 40 km/h (25 MPH).

CAUTION:

Always drive vehicle at a safe speed.

4.

Press SET/COAST switch.

5.

Check that the reading of the speedometer shows the same value as the set speed indicated in the infor-
mation display while driving the vehicle on a flat road.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

ECM-401, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010703088

1.

CHECK DTC

1.

Check that DTC UXXXX is not displayed.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform trouble diagnosis for DTC UXXXX. Refer to 

ECM-93, "DTC Index"

.

2.

CHECK DTC WITH COMBINATION METER

Check DTC with combination meter. Refer to 

MWI-29, "CONSULT Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform trouble diagnosis for DTC indicated.

3.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-80, "Removal and Installation"

.

NO

>> Repair or replace error-detected parts.