2004 ISUZU TF SERIES Workshop Manual

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Page 4073 of 4264

ISUZU TF SERIES 2004 Workshop Manual DIAGNOSIS (JR405E) 7A2-81

Step Action Yes No
1 Turn the key switch on and check the DTC. Is only the DTC for
2-4 brake fail-safe valve failure outputted?
Go to Step 2
Go to Other DTC
Section

Page 4074 of 4264

ISUZU TF SERIES 2004 Workshop Manual 7A2-82 DIAGNOSIS (JR405E)
DTC P0602 Programming Error

Setting Condition:
When reprogramming operation is stopped under Service Programming System (SPS).
When non programmed TCM (blank TCM

Page 4075 of 4264

ISUZU TF SERIES 2004 Workshop Manual DIAGNOSIS (JR405E) 7A2-83
SYMPTOM DIAGNOSIS

Symptom Condition Description
Vehicle does not
run In D, 3, 2, L, and R ranges Vehicle does not run though the accelerator
pedal is stepped on. A1

Page 4076 of 4264

ISUZU TF SERIES 2004 Workshop Manual 7A2-84 DIAGNOSIS (JR405E)
SYMPTOM DIAGNOSIS TABLE

Page 4077 of 4264

ISUZU TF SERIES 2004 Workshop Manual DIAGNOSIS (JR405E) 7A2-85
SYMPTOM DIAGNOSIS

Symptom Condition Description
Faulty shifting Engine race up (slip) when gear is shifted up
to 1st to 2nd
The engine speed up when the accelerator

DIAGNOSIS (JR405E) 7A2-85
SYMPTOM DIAGNOSIS

Symptom Condition Description
Faulty shifting Engine race up (slip) when gear is shifted up
to 1st to 2nd
The engine speed up when the accelerator
pedal is stepped on for acceleration and the
gear is shifted up.
C1
Engine race up (slip) when gear is shifted up
to 2nd to 3rd
The engine speed up when the accelerator
pedal is stepped on for acceleration and the
gear is shifted up.
C2
Engine race up (slip) when gear is shifted up
to 3rd to 4th
The engine speed up when the accelerator
pedal is stepped on for acceleration and the
gear is shifted down or for kick-down during
steady run.
C3
Engine race up (slip) when gear is shift
down or kick-down to 4th to 3rd
The engine speed up when the accelerator
pedal is stepped on for acceleration and the
gear is shifted down or for kick-down.
C4
Engine race up (slip) when gear is shift
down or kick-down to 4th to 2nd
The engine speed up when the accelerator
pedal is stepped on for acceleration and the
gear is shifted down or for kick-down.
C5
Engine race up (slip) when gear is shift
down or kick-down to3rd to 2nd
The engine speed up when the accelerator
pedal is stepped on for acceleration and the
gear is shifted down or for kick-down.
C6
Engine race up (slip) when gear is shift
down or kick-down to4th or 3rd to 1st
The engine speed up when the accelerator
pedal is stepped on for acceleration and the
gear is shifted down or for kick-down.
C7
Engine race up (slip) others
The engine speed up when the accelerator
pedal is stepped on for acceleration and the
gear is shifted down or for kick-down during
steady run.
C8
Braking feel when gear is shifted up to 1st to
2nd
Brake feeling appears when the accelerator
pedal is stepped on for acceleration and the
gear is shifted up.
C9
Braking feel when gear is shifted up to 2nd
to 3rd
Brake feeling appears when the accelerator
pedal is stepped on for acceleration and the
gear is shifted up.
C10
Braking feel when gear is shifted up to 3rd
to 4th
Brake feeling appears when the accelerator
pedal is stepped on for acceleration and the
gear is shifted up.
C11
Large shock when gear is shifted to 1st to
2nd or 2nd to 1st
Large shock is felt when the accelerator
pedal is stepped on for acceleration and the
gear is shifted up or down.
C12
Large shock when gear is shifted to 2nd to
3rd or 3rd to 2nd
Large shock is felt when the accelerator
pedal is stepped on for acceleration and the
gear is shifted up or down.
C13

Page 4078 of 4264

ISUZU TF SERIES 2004 Workshop Manual 7A2-86 DIAGNOSIS (JR405E)
Symptom Condition Description
Large shock when gear is shifted to 3rd to
4th or 4th to 3rd
Large shock is felt when the accelerator
pedal is stepped on for accelerati

Page 4079 of 4264

ISUZU TF SERIES 2004 Workshop Manual DIAGNOSIS (JR405E) 7A2-87

Page 4080 of 4264

ISUZU TF SERIES 2004 Workshop Manual 7A2-88 DIAGNOSIS (JR405E)
SYMPTOM DIAGNOSIS

Symptom Condition Description
Faulty shift point Faulty gear shifting (different from shift
pattern)
Gear is shifted, different from the specified

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