1998 ISUZU TROOPER Service Repair Manual

Page 601 of 3573

ISUZU TROOPER 1998  Service Repair Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2±30
Diagnostic Trouble Codes
CodeItemDiagnosisCheck flow No.
12Start codeNormalÐ
13RefShorted GND6
14Front speed sensorInput abnormality (open, sig or com)2
15RefS

Page 602 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B2±31 DRIVE LINE CONTROL SYSTEM (TOD)
Diagnosis from Trouble Codes
Diagnose the TOD based on the fault that has been
saved to the control unit according to the system
self-diagnostic function.
Chec

Page 603 of 3573

ISUZU TROOPER 1998  Service Repair Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2±32
Check flowTrouble codePhenomenonStandard
214Front speed sensor signal open or
GND short, speed sensor com
open.0.3 > sensor voltage
NOTE: The following procedur

Page 604 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B2±33 DRIVE LINE CONTROL SYSTEM (TOD)
StepActionYe sNo
11. Start the engine.
2. Select 4H (TOD) mode.
Is the memory except DTC 14?
Go to Step 3Go to Step 2
2Is the continuity harness of terminal 24

Page 605 of 3573

ISUZU TROOPER 1998  Service Repair Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2±34
Check flowTrouble codePhenomenonStandard
316The front speed sensor no pulse.Hi level : 4.5 ~ 6.0 V
Lo level : 0.7 ~ 2.0 V
Frequency (F) =
GAS: 832 Hz (at 50 km/

Page 606 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B2±35 DRIVE LINE CONTROL SYSTEM (TOD)
StepActionYe sNo
11. Connect TECH 2.
While running in TOD mode, does TECH±2s front speed sensor
indication change with vehicle speed?
Go to Step 2
Repair and

Page 607 of 3573

ISUZU TROOPER 1998  Service Repair Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2±36
Check flowTrouble codePhenomenonStandard
427The rear speed sensor no pulse.Hi level : 4.5 ~ 6.0 V
Lo level : 0.7 ~ 2.0 V
Frequency (F) =
832 Hz (at 50 km/h)
NOT

Page 608 of 3573

ISUZU TROOPER 1998  Service Repair Manual 4B2±37 DRIVE LINE CONTROL SYSTEM (TOD)
StepActionYe sNo
11. Connect TECH 2.
While running in TOD mode, does TECH±2s rear speed sensor
indication change with vehicle speed?
Go to Step 2
Repair and
i