1997 ISUZU TFR SERIES steering

2
Page
Loss of car pass ...............................................<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011>... 24
Diagnostic procedure.............................................................................................................. 26
Diagnostic procedure.............................................................................................................. 27
1. 12V power is not supplied to lCU. ................................................................................ 27
2. Engine does not start after steering assembly is repaired. ....................................... 27
3. If engine does not start after ICU replacement, check part number (01MY)............. 27
4. Electrical wiring ............................................................................................................. 32

27
Diagnostic procedure
No DTC indicates
Engine does not start to run even though all engine and electrical system are OK, and no DTC appears.
1. 12V power is not supplied to ICU.
Check engine light
Is blinking at 2Hz.ECM or electrical
unit wiring check No
Yes Yes
Starter is not rotated
By correct key at all.Check DTC with Tech 2
12V power is not
supplied to ICU
Repair 12V circuitICU power supply turns off when both +B line
and ignition switch line turn off.
ICU
No.1 Pin
No.2 Pin+B
Ignition SWCheck both wiring systems for continuity.
No
2. Engine does not start after steering assembly is repaired.
Check if connector for Antenna coil circuit at steering shaft is correct, or missing connection.
If not correct, replace the steering assy with corrector.
3. If engine does not start after ICU replacement, check part number (01MY).
Proper parts Numbers are following.
Gas Engine 897228-184X
Suffix number
Diesel Engine 897228-183X
Suffix number

30
B0016VEHICLE SPEED SIGNAL Hi (Gas Engine)
FREQUENCY SIGNAL Hi (Diesel ENGINE)
Disconnect both
connectors and check
voltage on ICU side.
voltage
2.5v
W iring repairYesNo
Clear DTC
B0017NO ENGINE REQUEST RECEIVED (Gas Engine)
Check path ICU
pin 3 and ECM pin B-18(V6)
J2-B4(L4) for continuity
Replace ECM, because ECM internal circuit fails.OK
W iring repair NG
B0023ANTENNA COIL OPEN
Antenna coil open
Check path between
ICU pin 6 and pin 13
for continuity
Replace steering lock AssyNG
Clear DTC
OK OK
Check path between
ICU pin 6 and connector A pin
for continuity
Check path between
ICU pin 13 and connector A pin
for continuity
ICU
A connector 2 pin
6
13
Antenna coil NG
Correction
NG
NG
CorrectionNG

34
Immobilizer system Electrical wiring for Diesel Engine
(4JG2 3.1L/4JB1 2.8L/4JA1 2.5L)
BATT3W/B
PA 0 3(4)
3W/B
PA 0 2
0.5G/R
DA010.5Y
MA010.5B/W
LA060.5L/W
LA27
0.85W/G
MB080.5B
LX21 3B
LA043B/W
LA25
3B/Y
PA 0 50.85W/G
HB12
0.5R/W
MB07 STOP LAMP SW
0.5G
IB20
0.5B ZZ07
0.5B ZZ06
0.5O/B
MB04HORN
9 (2)
MAIN
100A
STOP
10AENGINE
15A
METER
10A40A
IGN-B1 8B/R
PA 0 1
B2
B1ACC OFF
IG2
IG1 STSW ; STARTER
(STEERING LOCK)RELAY ;
STARTER
40A
IGN-B2
HORN
10A
0.5Y
MB056
0.5L
MB0613
0.5B
MY017
0.5B
MY02
FUEL CUT VALVE
(INJ PUMP)MB03
0.85W/G
HB09
1
0.5BR/Y
MA423
0.5O/L
MB0114
0.85W/G
MB022
0.5O
MB038
ANT.COIL
(STRG LOCK)
( )
( )
STARTER
IMMOBILIZER CONT
(3)(1) (2)
RELAY ;
IMMOBILIZER
STARTER
10A
(7)
METER
CHECK ENG
BUSBAR
(B-14)
(B-12)
DDS-1 ; IMMOBILIZER
(ENGINE)
: Special connector of DDS-1