Isuzu 1999 RODEO Workshop Manual page 924

Step
1 Was the "On–Board Diagnostic (OBD) System Check"
performed?
2 Using a Digital Voltmeter (DVM), measure the battery
voltage at the battery.
Is the battery voltage greater than the specified value?
3 1. Install the Tech 2.
2. Select "Ignition Volts" on the Tech 2.
3. Start the engine and raise the engine speed to 2000
RPM.
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. Ignition ON, Engine OFF
4. Using a DVM, measure the voltage at the PCM Main
Relay's two power inputs to the PCM.
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. Refer to On–Vehicle Service in
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?
RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION
DTC P0562 System Voltage Low
Action
replacement PCM must
Module and Sensors
Value(s)
— Go to Step 2
11.5 V Go to Step 3
13.2 V Go to Step 4
Check for
excessive
current draw
with ignition
OFF, engine
—
— Verify repair
— Verify repair
be
for
— Verify repair
6E1–297
Yes No
Go to OBD
System
Check
Charge
battery, then
go to Step 3
Go to
Starting/Char
ging
OFF. Go to Step 5
Go to Step 6
Go to Step 7
—