Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 265
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 circuit
ICU power supply turns off when both +B line
and ignition switch line turn off.
ICU
No.1 Pin
No.2 Pin
+B
Ignition SW
Check 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
28
DTC appears
B0011
TRANSPONDER KEY PROBLEM
Transponder key code read error
Is key correct?
With other keys,
check for proper
operation
Rewrite transponder key.
Please refer to “transponder programming”
on page 14.
Rewrite all key
Reregistration
Check antenna wiring
Does B0023 appear?
Correction check
ICU replacement
Transponder replacement
OK
OK
Yes
NG
NG
OK
No
No
OK
Note: B0011 means Body category Number 0011 Diagnostic Trouble Code.
29
B0012
WRONG TRANSPONDER KEY
Is key correct?
ICU replacement
Rewrite transponder key.
Rewrite all key
OK
OK
Check other keys
Reregister
transponder key
NG
NG
B0013
IMMOBILIZER NOT PROGRAMMED
Replace ICU.
B0014
NO TRANSPONDER KEY PROGRAMMED
Replace ICU.
B0055
EEPROM ERROR
Replace ICU.
B0015
VEHICLE SPEED SIGNAL Lo (Gas Engine)
FREQUENCY SIGNAL Lo (Diesel ENGINE)
*Speed sensor signal voltage lower than 2.5v. (Gas)
*Frequency signal voltage lower than 2.5v (Diesel)
Check path and
between ICU pin 8, ECM
pin (Gas), or DDS-1 (Diesel)
for continuity
Disconnect both
connectors and check
path between ICU
and body earth for
continuity
Wiring repair
NG
OK
30
B0016
VEHICLE SPEED SIGNAL Hi (Gas Engine)
FREQUENCY SIGNAL Hi (Diesel ENGINE)
Disconnect both
connectors and check
voltage on ICU side.
voltage
≥
2.5v
Wiring repair
Yes
No
Clear DTC
B0017
NO 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
Wiring repair
NG
B0023
ANTENNA COIL OPEN
Antenna coil open
Check path between
ICU pin 6 and pin 13
for continuity
Replace steering lock Assy
NG
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
Correction
NG
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