Isuzu 2000 Trooper Workshop Manual page 1149

6E–280
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Step
1 Was the "On-Board Diagnostic (OBD) System Check"
performed?
2 Attempt to start the engine.
Does the engine start?
3 1. Review and record Failure Records information.
2. Clear DTC P0336.
3. Start the engine and idle for 1 minute.
4. Observe DTCs.
Is DTC P0336 set?
4 1. Disconnect the PCM and CKP sensor.
2. Check for an open or a short to ground in the 58X
reference circuit between the CKP sensor
connector and the PCM harness connector.
3. If a problem is found, repair as necessary.
Was a problem found?
5 1. Reconnect the PCM and CKP sensor.
2. Connect a DVM to measure voltage on the 58X
reference circuit at the PCM connector.
3. Observe the voltage while cranking the engine.
Is the voltage near the specified value?
6 Check the connections at the CKP sensor and replace
the terminals if necessary.
Did any terminals require replacement?
7 Replace the CKP sensor. Use caution to avoid any hot
oil that may drip out.
Is the action complete?
8 Check connections at the PCM and replace the
terminals if necessary.
Did any terminals require replacement?
9 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 P0336 – 58X Reference Signal Circuit
Action
replacement PCM
Refer to On-Vehicle Service in
Module and Sensors
Value(s)
—
—
—
—
2.5 V
—
—
—
must be
for
—
Yes No
Go to OBD
System
Check
Go to Step 2
Go to "Engine
Cranks But
Will Not Run"
Go to Step 3 chart
Refer to
Diagnostic
Go to Step 4 Aids
Go to Step 5
Verify repair
Go to Step 8 Go to Step 6
Verify repair Go to Step 7
Verify repair —
Go to Step 9
Verify repair
Verify repair —