Isuzu 1999 RODEO Workshop Manual page 711

6E1–84
RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION
Step
8 1. Disconnect the ignition module harness connector.
2. Check for an open or short circuit between the
ignition control module and the PCM?
Was a problem found?
9 Repair the faulty circuit.
10 1. Ignition ON.
2. Using a Digital Voltmeter (DVM) check the ignition
wire coil at the ignition module harness connector?
Was the voltage equal to the specified value?
11 Repair the open circuit.
12 1. Ignition OFF.
2. With DVM, check for an open in the ground wire at
the ignition module harness connector.
Was the ground wire OK?
13 Repair the faulty wire.
14 Replace the ignition module, verify the repair.
Attempt to start the engine.
Is there still a problem?
15 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?
16 Use an ohmmeter to check the ignition coil primary
winding resistance.
Was the primary winding resistance approximately
equal to the specified value?
17 Use an ohmmeter to check the ignition coil secondary
winding resistance.
Was the secondary winding resistance equal to the
specified value?
18 Replace the ignition coil.
19 Test the resistance of the coil–to–spark plug secondary
ignition wire.
Was the resistance greater than the specified value?
Engine Cranks But Will Not Run (Cont'd)
Action
replacement PCM
Module and Sensors
Value(s)
—
—
B+
—
—
—
—
must be
for
—
0.8–18 W
9,000–12,000
W
—
10,000 W per
foot
Yes No
Go to Step 10
Go to Step 9
Verify repair —
Go to Step 12 Go to Step 11
Verify repair —
Go to Step 14 Go to Step 13
Verify repair —
Go to Step 15
Verify repair
Verify repair —
Go to Step 17 Go to Step 18
Go to Step 19 Go to Step 18
Verify repair —
Go to Step 20 Go to Step 21