Isuzu 2000 Trooper Workshop Manual page 1233

6E–364
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Step
1 Was the "ON-Board Diagnostic (OBD) System Check"
performed?
2 Using a DVM, measure the battery voltage at the
battery.
Is the battery voltage less than the specified value?
3 1. Charge the battery and clean the battery terminals.
2. Clean the battery ground cable connection if
corrosion is indicated.
Is the battery voltage less than the specified value?
4 1. Turn "OFF" all the accessories.
2. Install a Tech 2.
3. Select the ignition voltage parameter on the Tech 2.
4. Start the engine and raise the engine RPM to the
specified value.
Is the voltage more than 2.5 volts greater than the
measurement taken in step 2 or 3?
5 Replace the PCM.
IMPORTANT: The
programmed.
Powertrain Control
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?
DTC P0563 – System Voltage High
Action
replacement PCM
Refer to On-Vehicle Service in
Module and Sensors
Value(s)
—
11.5 V
11.5 V
2000 RPM
must be
for
—
Yes No
Go to OBD
System
Check
Go to Step 2
Go to Step 3 Go to Step 4
Replace
Go to Step 4
battery
Go to
Starting/Char
ging
Go to Step 5
Verify repair —