Isuzu Trooper (1998-2002 year). Manual — part 517
6E–438
6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC)
P1626 No response from immobilizer
D06R200118
Circuit Description
The PCM decides whether that is an abnomality in the
immobilizer control system. DTC P1626 or are recorded
by the PCM when no response from immobilizer.
Condition for Setting the DTC
D
No response from immobizer.
Action Taken When the DTC sets
D
Flashing the SVS lamp
D
The Engine does not start.
Condition for Clearing the MIL/DTC
D
Use clear DTC information with Tech 2. (Refer to
the
immobilizer workshop manual.) (ISUZU UES
Immobilizer system)
Diagnostic Aids
Check for the following conditions:
D
Poor connection at PCM and ImmobilizerInspect
harness connectors for backed out terminals, improper
mating, broken locks, improperly formed or damaged
terminals, and poor terminal to wire connection.
D
Damaged harness-Inspect the wiring harness for
damage, If the harness appears to be OK, disconnect
the PCM and Immobilizer, turn the ignition “ON” and
observe a voltmeter connected to the suspect driver
circuit at the PCM and Immobilizer harnass connector
while moving connectors and wiring harnesses relates
to the SVS lamp.
A change in voltage will indicate the location of the
fault.
6E–439
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1626-No response from immobilizer
Step
Action
Value(s)
Yes
No
1
Was the “On-Board Diagnostic (OBD) system Check”
performed?
—
Go to
Step 2
Go to
OBD
system check
2
Using the Tech 2 system selection menu, select Body
function.
Does the Tech 2 display B**** appear?
—
Refer to
“Immobilizer
workshop
manual”
Go to
Step 3
3
Does the Tech 2 display DTC P1626 appear?
—
Go to
Step 4
Refer to
Diagnostic
Aids
4
1. Check the Circuit for Immobilizer system.
2. Disconnect the VEHICLE SPEED SENSOR LINE
VSS OUT harness.
3. Check the circuit open or short voltage between the
Pin No.7 and Pin No.6 by DMM.
If a problem found, repair as necessary.
Was a problem found?
—
Verify repair
Go to
Step 5
5
Replace the PCM.
IMPORTANT: The replacement PCM must be
programmed. Refer to
On-Vehicle Service in
Powertrain Control Module and Sensors for
procedures, and immobilizer system workshop
manual.
And also refer to latest Service Bulletin.
Check to see if the Latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
—
Verify repair
—
6E–440
6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC)
P1631 Received response was not correct
D06R200118
Circuit Description
The PCM decides whether that is an abnomality in the
immobilizer control system. DTC P1631 are recorded by
the PCM when received response was not correct.
Condition for Setting the DTC
D
Received response was not correct.
Action Taken When the DTC Sets
D
Flashing the SVS lamp.
D
The engine does not start.
Condition for Clearing the MIL/DTC
D
Use clear DTC information with Tech 2. (Refer to
the
immobilizer workshop manual.) (ISUZU UES
Immobilizer system)
Diagnostic Aids
Check for the following conditions:
D
Poor connection at PCM and ImmobilizerInspect
harness connectors for backed out terminals, improper
mating, broken locks, improperly formed or damaged
terminals, and poor terminal to wire connection.
D
Damaged harness-Inspect the wiring harness for
damage, If the harness appears to be OK, disconnect
the PCM and Immobilizer, turn the ignition “ON” and
observe a voltmeter connected to the suspect driver
circuit at the PCM and Immobilizer harnass connector
while moving connectors and wiring harnesses relates
to the SVS lamp.
A change in voltage will indicate the location of the
fault.
6E–441
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1631 Received response was not correct
Step
Action
Value(s)
Yes
No
1
Was the “On-Board Diagnostic (OBD) system Check”
performed?
—
Go to
Step 2
Go to
OBD
system check
2
Replace the PCM.
IMPORTANT: The replacement PCM must be
programmed. Refer to
On-Vehicle Service in
Powertrain Control Module and Sensors for
procedures, and immobilizer system workshop
manual.
And also refer to latest Service Bulletin.
Check to see if the Latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
—
Verify repair
—
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст