Isuzu 2000 Trooper Workshop Manual page 967

6E–98
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Step
1 Was the " On - Board Diagnostic (OBD) System Check"
performed?
2 1. Ignition "OFF," disconnect PCM.
2. Ignition "ON," observe the RPL (Reduced Power
Lamp).
Is the RPL " ON?"
3 1. Ignition "OFF," disconnect the instrument panel
cluster.
2. Check the RPL driver circuit between the PCM and
the instrument panel cluster for a short to ground.
3. If a problem is found, repair as necessary.
Was the RPL driver circuit shorted to ground?
4 Replace the instrument panel cluster.
Is the action complete?
5 1. Ignition "OFF," reconnect the PCM.
2. Ignition "ON," reprogram the EEPROM. Refer to On
- Vehicle Service in Powertrain Control Module and
Sensors for procedures.
3. Using the Tech 2 output controls function, select
RPL dash lamp control and command the RPL
"OFF." (Refer to the Miscellaneous test )
Did the MIL turn "OFF"?
6 Replace the PCM.
IMPORTANT: The
programmed.
Refer to ON-Vehicle Service in Power Control Module
and Sensors for procedures.
And also refer to latest Service Bulletin. Check to see
if the latest software is released or not.
And then Down Load the LATEST PROGRMMED
SOFTWARE to the replasement PCM.
Is the action complete?
Reduced Power Lamp (RPL) "ON" Steady
Action
replacement PCM
Value(s)
—
—
—
—
—
must be
—
Yes No
Go to OBD
System
Check
Go to Step 2
Go to Step 3 Go to Step 5
Go to OBD
System
Check Go to Step 4
Go to OBD
System
Check
—
Go to OBD
System
Check
Go to Step 6
Go to OBD
System
Check —