Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 217

ENGINE DRIVEABILITY AND EMISSIONS

6E–109

P0351

A

Ignition 1 Control Circuit

#2 or #3cylinder ignition signals are not
detected consecutively.

No fail-safe function.

Consecutive ignition signals are detected.

1. Ignition coil module 1 harness open

circuit, short to ground or short to
voltage circuit.

2. Ignition coil module malfunction.

3. ECM malfunction.

J1-19

P0352

A

Ignition 2 Control Circuit

#1 or #4 cylinder ignition signals are not
detected consecutively.

1. Ignition coil module 2 harness open

circuit, short to ground or short to
voltage circuit.

2. Ignition coil module malfunction.

3. ECM malfunction.

J1-18

P0443

B

EVAP Emission Control System Purge
Control Circuit

EVAP purge solenoid circuit open, short to
ground or short to voltage circuit.

No fail-safe function.

EVAP purge solenoid circuit is correct
condition.

1. Solenoid harness open circuit, short to

ground or short to voltage circuit.

2. Solenoid malfunction.

3. ECM malfunction.

J1-5

P0502

B

Vehicle Speed Sensor Circuit Low Input

1. No DTC relating to MAP sensor, TPS,

ECT sensor, injector control circuit and
ignition control circuit.

2. Engine is running.

3. Vehicle speed is below 3km/h in power

condition or 2km/h in deceleration
condition.

ECM uses 0km/h condition as
substitute.

VSS circuit correct condition.

1. Sensor harness open circuit, short to

ground circuit or short to voltage circuit.

2. Poor connector connection.

3. VSS malfunction.

4. ECM malfunction.

J2-23

P0562

D

System Voltage Low

Battery voltage is below 11V.

No fail-safe function.

Battery voltage is between 11V and 16V.

1. Battery power feed harness open circuit

or short to ground circuit.

2. ECM ground harness open or poor

connection.

3. Poor connector connection.

4. Battery malfunction.

5. Charge system malfunction.

6. ECM malfunction.

-

P0563

A

System Voltage High

Battery voltage is above 16V.

1. Charge system malfunction.

2. Battery jump start cable misconnect.

3. ECM malfunction.

-

P0601

A

ECM Memory Checksum

ECM memory area error.

Engine control disabled.

Memory are is OK.

ECM malfunction.

-

P0602

-

Programming Error

ECM memory area error.

Engine control disabled.

Memory are is OK.

ECM is not programmed.

-

P0650

A

Malfunction Indicator Lamp (MIL) Control
Circuit Malfunction

Check engine lamp circuit open, short to
ground or short to voltage circuit.

No fail-safe function.

Check engine lamp circuit is correct
condition.

1. Solenoid harness open circuit, short to

ground or short to voltage circuit.

2. Solenoid malfunction.

3. ECM malfunction.

J2-32

Code

Type

DTC Name

DTC Setting Condition

Fail-Safe (Back Up)

Recovery Condition

Related Failure Parts

Related ECM

Pin No.

6E–110

ENGINE DRIVEABILITY AND EMISSIONS

P1167

D

Fuel Supply System Rich During
Deceleration Fuel Cutoff

1. No DTC relating to MAP sensor, TPS,

EVAP purge, ECT sensor, CKP sensor,
VSS, injector control circuit and ignition
control circuit.

2. O

2

sensor bank 1 output voltage is

more than 550mV in deceleration fuel
cutoff mode.

No fail-safe function.

O

2

sensor output voltage is below 550mV.

1. Sensor harness open or short to ground

circuit.

2. O

2

sensor malfunction.

3. MAF sensor output is incorrect.

4. Air intake line malfunction.

5. IAC valve malfunction.

6. Low fuel pressure.

7. Injector malfunction.

8. EVAP purge solenoid valve malfunction.

9. Ignition system malfunction.

10. Spark plug malfunction.

11. ECM malfunction.

J2-6/

J2-21

P1171

D

Fuel Supply System Lean During Power
Enrichment

1. No DTC relating to MAP sensor, TPS,

EVAP purge, ECT sensor, CKP sensor,
VSS, injector control circuit and ignition
control circuit.

2. Engine coolant temperature is more

than 60°C.

3. Mass air flow is below 13.5m/s.

4. O

2

sensor bank 1 output voltage is

below 350mV in power enrichment
mode.

No fail-safe function.

O

2

sensor output voltage is more than

350mV.

1. Sensor harness open or short to ground

circuit.

2. O

2

sensor malfunction.

3. MAF sensor output is incorrect.

4. Air intake line malfunction.

5. IAC valve malfunction.

6. Low fuel pressure.

7. Injector malfunction.

8. ECM malfunction.

J2-6/

J2-21

P1625

B

ECM System Reset

ECM reset has occurred other than “On”.

Engine control disabled.

Memory are is OK.

1. Electrical interference.

2. Magnetic interference.

3. ECM malfunction.

-

P1626

-

Immobiliser No Signal

No response from immobiliser control unit.

1. Engine does not start.

2. Check engine lamp flash.

No recovery.

1. ECM and immobiliser control unit

communication circuit open circuit, short
to ground circuit or short to voltage
circuit.

2. ECM malfunction.

3. Immobiliser control unit malfunction.

4. Transponder key malfunction.

J2-23/

J2-32

P1631

-

Immobiliser Wrong Signal

Received response is not correct.

1. ECM malfunction.

2. Immobiliser control unit malfunction.

3. Transponder key malfunction.

-

P1648

-

Wrong Security Code Entered

Received incorrect security code.

1. ECM malfunction.

2. Immobiliser control unit malfunction.

3. Transponder key malfunction.

-

P1649

-

Immobiliser Function Not Programmed

Immobiliser function is not programmed in
the ECM.

ECM malfunction.

-

P1693

B

Tachometer Output Low Voltage

Tacho output circuit short to ground circuit. No fail-safe function.

Tacho output circuit is correct condition.

1. Tacho output circuit short to ground

circuit.

2. Poor connector connection.

3. ECM malfunction.

J2-25

Code

Type

DTC Name

DTC Setting Condition

Fail-Safe (Back Up)

Recovery Condition

Related Failure Parts

Related ECM

Pin No.

ENGINE DRIVEABILITY AND EMISSIONS

6E–111

DIAGNOSTIC TROUBLE CODE (DTC) P0107 MANIFOLD ABSOLUTE

PRESSURE CIRCUIT LOW INPUT

Condition for setting the DTC and action taken when the DTC sets

Circuit Description

The manifold absolute pressure (MAP) sensor responds
to changes in intake manifold pressure. The MAP
sensor signal voltage to the engine control module
(ECM) varies from below 2 volts at idle (low manifold
pressure) to above 4 volts with the ignition ON, engine
not running or at wide-open throttle (high manifold
pressure).
A “speed density” method of determining engine load is
used on the 2.4L engine. This is calculated using inputs
from the MAP sensor, the CKP Sensor, and the Intake

Air Temperature (IAT) sensor. The MAP sensor is the
main sensor used in this calculation, and measuring
engine load is its main function.
The ECM monitors the MAP signals for voltages outside
the normal range (10-104 kpa) of the MAP sensor. If the
ECM detects a MAP signal voltage that is excessively
low, Diagnostic Trouble Code P0107 will be set.

Diagnostic Aids

Check for the following conditions:

• Poor connection at ECM - Inspect harness

Code

Type

DTC Name

DTC Setting Condition

Fail-Safe (Back Up)

P0107

A

Manifold Absolute Pressure Circuit Low
Input

1. No DTC relating to TPS.
2. Throttle position is more than 0% if engine

speed is below 1000rpm, or throttle posi-
tion more than 5% if engine speed is more
than 1000rpm.

3. MAP sensor output is below 12KPa.

The ECM uses default manifold absolute
pressure value based on engine speed
and throttle position.

Manifold
Absolute
Pressure(MAP) Sensor

Crankshaft
Position(CKP)
Sensor

µP

0.5
GRY/
BLU

J1-16

0.5
GRY/
RED

J1-24

0.5
YEL/
RED

J1-31

0.5
BLK/
WHT

J1-1

0.5
BLK/
WHT

J1-2

0.5
BLK/
WHT

J1-17

0.5
BLK

J1-6

0.5
WHT

J1-21

INLET
MANIFOLD

5 Volts
Reference

Engine
Control
Module
(ECM)

6E–112

ENGINE DRIVEABILITY AND EMISSIONS

connectors for backed-out terminals, improper
mating, broken locks, improperly formed or damaged
terminals, and poor terminal-to-wire connection.

• If these codes are also set, it could indicate a

problem with the 5 Volt reference circuit.

• Damaged harness - Inspect the wiring harness for

damage, short to ground, short to battery positive,
and open circuit. If the harness appears to be OK,
observe the MAP display on the Tech 2 while moving
connectors and wiring harnesses related to the
sensor. A change in the display will indicate the
location of the fault.

Diagnostic Trouble Code (DTC) P0107

Manifold Absolute Pressure Circuit Low Input

Step

Action

Value(s)

Yes

No

1

Was the “On-Board Diagnostic (OBD) System Check”
performed?

—

Go to Step 2

Go to On Board

Diagnostic

(OBD) System

Check

2

1. Connect the Tech 2.

2. Review and record the failure information.

3. Select “F0: Read DTC Infor By Priority” in “F0:

Diagnostic Trouble Code”.

Is the DTC P0107 stored as “Present Failure”?

—

Go to Step 3

Refer to

Diagnostic Aids

and Go to Step

3

3

1. Using the Tech2, ignition “On” and engine “Off”.

2. Select “Clear DTC Information” with the Tech2 and

clear the DTC information.

3. Operate the vehicle and monitor the “F5: Failed

This Ignition” in “F2: DTC Information”.

Was the DTC P0107 stored in this ignition cycle?

—

Go to Step 4

Refer to

Diagnostic Aids

and Go to Step

4

4

Check for poor/faulty connection at the MAP sensor or
ECM connector. If a poor/faulty connection is found,
repair as necessary.
Was the problem found?

—

Verify repair

Go to Step 5

5

Visually check the MAP.
Was the problem found?

—

Go to Step 9

Go to Step 6

6

Using the DVM and check the MAP sensor power
supply circuit.

1. Ignition “On”, engine “Off”.

2. Disconnect the MAP sensor connector.

3. Check the circuit for open or short to ground

circuit.

Was the DVM indicated specified value?

Approximately

5.0V

Go to Step 8

Go to Step 7

16

31

24

E85

E60(J1)

V

E85

3