- Isuzu 4jh1 Service Manual Transmissions
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Isuzu 4JA1 4JH1-TC engine Repair Manual Software Database Download Complete Factory Original Repair Manual This repair manual has been Engine Type: Isuzu Diesel 4JB1 & 4JG1 Engine Models 2 This manual is designed as a quick guide to familiarize you with part numbers and descriptions of component spare parts, as well as to inform you of how to. FOR SERVICE TRAINING 4JH1-TC ENGINE Engine Management System Operation & Diagnosis ISUZU MOTORS LIMITED INTRODUCTION & OUTLINE.
6E–292
4JH1 ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P1651 (Symptom Code B) (Flash Code 45) CAN
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Receives Error
Step
Isuzu 4jh1 Service Manual Transmissions
Action
Value(s)
Yes
No
1
Was the “On-Board Diagnostic (OBD) System Check”
performed?
—
Go to Step 2
Go to On Board
Diagnostic
(OBD) System
Check
2
1. Connect the Tech 2.
2. Review and record the failure information.
3. Select “F0: Read DTC Infor As Stored By ECU” in
“F0: Diagnostic Trouble Codes”.
Is the DTC P1651 (Symptom Code B) stored as
“Present Failure”?
—
Go to Step 3
Refer to
Diagnostic Aids
and Go to Step
3
3
1. Using the Tech 2, ignition “On” and engine “Off”.
2. Select “F1: Clear DTC Information” in “F0:
Diagnostic Trouble Codes” with the Tech 2 and
clear the DTC information.
3. Operate the vehicle and monitor the “F0: Read
DTC Infor As Stored By ECU” in the “F0:
Diagnostic Trouble Codes”.
Was the DTC P1651 (Symptom Code B) stored in this
ignition cycle?
—
Go to Step 4
Refer to
Diagnostic Aids
and Go to Step
Manual Car Service Manuals
4
4
Was the DTC P1650 (Symptom Code A) stored at the
same time?
—
Go to DTC
Chart P1650
(Symptom
Code A)
Isuzu 4jh1 Service Manual Pdf
Go to Step 5
5
Check for poor/faulty connection at the ECM or PSG
(pump control unit) connector. If a poor/faulty
connection is found, repair as necessary.
Was the problem found?
—
Verify repair
Go to Step 6
6
Visually check the PSG (pump control unit).
Was the problem found?
—
Go to Step 19
Go to Step 7
Service Manual Bmw
7
Using the DVM and check the CAN high circuit.
1. Ignition “Off”, engine “Off”.
2. Disconnect the ECM connector and PSG (pump
control unit) connector.
3. Check the circuit for short to CAN low circuit.
Was the DVM indicated specified value?
No continuity
Go to Step 8
Repair faulty
harness and
verify repair
100
99
1
2
C-57
E-6
2
1
E-6