Isuzu 4JA1 Workshop Manual page 403

Step
11 Replace the IP cluster (meter assembly). Refer to IP
Cluster Replacement in electrical section.
Did you complete the replacement?
12 Important: Replacement
programmed.
Replace the TCM. Refer to Transmission Control
Module (TCM) Replacement in the transmission
section.
Did you complete the replacement?
13 Important: Replacement
programmed.
Replace the ECM. Refer to Engine Control Module
(ECM) Replacement in this section.
Did you complete the replacement?
14 1. Reconnect all previously disconnected harness
connector(s).
2. Clear the DTCs with the scan tool.
3. Turn OFF the ignition for 30 seconds.
4. Drive the vehicle.
5. Observe the Vehicle Speed parameter with the
scan tool.
Does the Vehicle Speed parameter indicate correct
vehicle speed?
15 Observe the DTC Information with the scan tool.
Are there any DTCs that you have not diagnosed?
Chart for except 2WD with A/T
Step
1 Did you perform the Diagnostic System Check-
Engine Controls?
2 1. Install the scan tool.
2. Drive the vehicle.
3. Observe the Vehicle Speed parameter with the
scan tool.
Does the Vehicle Speed parameter indicate correct
vehicle speed?
3 1. Turn OFF the ignition.
2. Inspect the Meter (10A) fuse (C-14) in the cabin
fuse block.
Is the Meter (10A) fuse (C-14) open?
4 Replace the Meter (10A) fuse (C-14). If the fuse
continues to open, repair the short to ground on one
of the circuits that fed by the Meter (10A) fuse (C-14)
or replace the shorted attached component fed by
the Meter (10A) fuse (C-14).
Did you complete the repair?
Action
TCM must
ECM must
Action
Engine Control System (4JH1) 6E-149
Value(s)

be

be



Trouble Code (DTC)
Value(s)




Yes
Go to Step 14
Go to Step 14
Go to Step 14
Go to Step 15 Go to Step 2
Go to Diagnostic
List
Yes
Go to Diagnostic
System Check-
Go to Step 2 Engine Controls
Go to Diagnostic
Aids Go to Step 3
Go to Step 4 Go to Step 5
Go to Step 20
No



System OK
No
