2002 ISUZU AXIOM Service Repair Manual

Page 409 of 2100

ISUZU AXIOM 2002  Service Repair Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2±30
Checking Failed TOD Control Unit Pin
NOTE:
1. Unplug the ECU connector and the pins, unless
otherwise specified.
2. Before removing the ECU, turn off the igniti

Page 410 of 2100

ISUZU AXIOM 2002  Service Repair Manual 4B2±31
DRIVE LINE CONTROL SYSTEM (TOD)
Check
Pin
No.Note Standard Value Measure
 between 
Pin No. Unit
Scale/
Range Engine
State Ignition
Switch
Position Circuit to be
tested
364WD
OUTOFFSTOP36, 477

Page 411 of 2100

ISUZU AXIOM 2002  Service Repair Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2±32
Tech 2 Scan Tool
From 98 MY, Isuzu dealer service departments are
recommended to use Tech 2. Please refer to Tech 2 scan
tool user guide.
901RW257
Legend
(1) PC

Page 412 of 2100

ISUZU AXIOM 2002  Service Repair Manual 4B2±33
DRIVE LINE CONTROL SYSTEM (TOD)
Getting Started
Before operating the Isuzu PCMCIA card with the
Tech 2, the following steps must be performed:
1. The Isuzu 02 System PCMCIA card (1) inserts i

Page 413 of 2100

ISUZU AXIOM 2002  Service Repair Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2±34
060R200079

Page 414 of 2100

ISUZU AXIOM 2002  Service Repair Manual 4B2±35
DRIVE LINE CONTROL SYSTEM (TOD)
Diagnostic Trouble Codes
CodeTech 2 code
(P code)ItemDiagnosisCheck flow No.
12ÐStart codeNormalÐ
13P1735RefShorted GND6
14P1731Front speed sensorInput abnorm

Page 415 of 2100

ISUZU AXIOM 2002  Service Repair Manual DRIVE LINE CONTROL SYSTEM (TOD) 4B2±36
Diagnosis from Trouble Codes
Diagnose the fault that have been saved to the control
unit according to the system self-diagnostic function.
Check flow
Trouble c

Page 416 of 2100

ISUZU AXIOM 2002  Service Repair Manual 4B2±37
DRIVE LINE CONTROL SYSTEM (TOD)
Check flowTrouble codePhenomenonStandard
214Front speed sensor signal open or
GND short speed sensor com
0.2V > sensor voltage
P1731GND short, s eed sensor com