Workshop Manual

6E–88
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Malfunction Indicator Lamp (MIL) “ON” Steady
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 1. Ignition “OFF”, disconnect PCM.
2. Ignition “ON”, observe the MIL (Service Engine
Soon lamp).
Is the MIL “ON”?
— Go to Step 3 Go to Step 5
3 1. Ignition “OFF”, disconnect the instrument panel
cluster.
2. Check the MIL 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 MIL driver circuit shorted to ground?
—
Go to OBD
System
Check
Go to Step 4
4 Replace the instrument panel cluster.
Is the action complete?
—
Go to OBD
System
Check
—
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
MIL dash lamp control and command the MIL
“OFF”. (Refer to the Miscellaneous test)
Did the MIL turn “OFF”?
—
Go to OBD
System
Check
Go to Step 6
6 Replace the PCM.
IMPORTANT: The replacement PCM must be
programmed. Refer to
On-Vehicle Service in
Powertrain 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 PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
—
Go to OBD
System
Check
—