Isuzu Trooper (2000 year). Manual — part 102
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–28
060RX062
4B2–29
DRIVE LINE CONTROL SYSTEM (TOD)
Diagnostic Trouble Codes
Code
Item
Diagnosis
Check flow No.
12
Start code
Normal
—
13
Ref
Shorted GND
6
14
Front speed sensor
Input abnormality (open, sig or com)
2
15
Ref
Shorted V
B
6
16
Front speed sensor
Input abnormality
3
21
TPS
Shorted or disconnected wiring, abnormality in
input
7
23
ECU
CPU abnormality
1
24
Rear speed sensor
Input abnormality (open, sig or com)
5
26
EMC (+)
Shorted GND
10
27
Rear speed sensor
Input abnormality
4
28
ADC (+) & AXLE SW
Output abnormality
11
31
EMC (+)
Shorted or disconnected coil/wiring
9
32
ADC (+)
Shorted or disconnected coil/wiring
12
33
ADC (+)
Shorted GND
13
36
ECU
CPU abnormality
1
37
ECU
CPU abnormality
1
38
ECU
CPU abnormality
1
TPS : Throttle Position Sensor
EMC : Electromagnetic coil
ADC : Shift on the fly (Axle Dis Connect)
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–30
Diagnosis from Trouble Codes
D
Diagnose the based on the fault that have been saved
to the control unit according to the system
self-diagnostic function.
Check flow
Trouble code
Phenomenon
Standard
1
23, 36, 37, 38
The ECU is failed.
—
Step
Action
Yes
No
1
Turn on the starter switch.
Is the trouble reproduced?
Replace the ECU
and conduct the
test run.
Go to Step 3
Go to Step 2
2
1. Clear the trouble codes.
2. Conduct the test run.
Is the trouble reproduced during the test run?
Replace the ECU
and conduct the
test run.
Go to Step 3
The trouble is not
reproduced.
Refer to
“Troubles
intermittently
observed”.
Go to Step 3
3
1. Check that all the parts are mounted.
2. Clear the trouble codes.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Return to Step 3
4B2–31
DRIVE LINE CONTROL SYSTEM (TOD)
Check flow
Trouble code
Phenomenon
Standard
2
14
Front speed sensor signal open or
GND short, speed sensor com
open.
0.3 < sensor voltage
NOTE: The following procedure shows the case that the
front or rear sensor common grounding line is broken.
D04RY00004
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