Isuzu 2000 Trooper Workshop Manual page 1231

6E–362
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 greater than the specified value?
3 1. Install a Tech 2.
2. Select "Ignition Volts" on the Tech 2.
3. Start the engine and raise the engine speed to the
specified value.
4. Load the electrical system by turning on the
headlights, high blower, etc.
Is the ignition voltage approximately equal to the
specified value?
4 1. Ignition "OFF."
2. Disconnect the PCM connector at the PCM.
3. Using a DVM, measure the battery voltage at the
PCM connector F-20 and F-57.
Is it approximately equal to battery voltage?
5 1. Check for faulty connections at the PCM harness
terminals.
2. Repair as necessary.
Was a repair necessary?
6 Check for an open battery feed circuit to the PCM.
Is the action complete?
7 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 P0562 – System Voltage Low
Action
replacement PCM
Refer to On-Vehicle Service in
Module and Sensors
Value(s)
—
11.5 V
2000 RPM
12.8-14.1 V
—
—
—
must be
for
—
Yes No
Go to OBD
System
Check
Go to Step 2
Charge
battery, then
Go to Step 3 go to Step 3
Go to
Starting/Char
Go to Step 4 ging
Check for
excessive
current draw
with ignition
"OFF," engine
Go to Step 5
"OFF."
Verify repair Go to Step 6
Go to Step 7
Verify repair
Verify repair —