Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 274

Diagnostic procedure

(6VD1 3.2L/C22NE 2.2L/22LE 2.2L/20LE 2.0L/4JG2 3.1L/4JB1 2.8L/4JA1 2.5L)

System guidance

Note:

Immobilizer may detect a history DTC by the timing of ON-OFF of a ignition switch.

Don't remove the ECM and ICU recklessly.

l Engine dose not run when any Diagnostic Trouble Code (DTC) is flagged, starting from 01MY

TFR/S.

l Once the cause of DTC is repaired or gone, engine can be operated normally, and present

DTC becomes history code.

l History code is canceled by no repeat failure on 25 consequence ignition key on afterward.
l History code cannot be canceled by battery connector disconnected, starting from 01MY.

Diagnostic Trouble Code (DTC) list

Code

(BCD)

Item Detecting

Condition

B8011 TRANSPONDER

KEY PROBLEM

Transponder code unsuccessfully read 5 consecutive time.
(Not completely read in 500ms transponder code)

B8012 WRONG

TRANSPONDER
KEY

Transponder code read from the ignition key does not match the
transponder code stored in the control unit.

B8013 IMMOBILIZER

NOT

PROGRAMMED

Immobilizer program no executed.

B8014 NO

TRANSPONDER

KEY PROGRAMMED

Processing to save the transponder key in the control unit not
Executed.

B8015 VEHICLE

SPEED

SIGNAL Lo (Gasoline)
FREQUENCY
SIGNAL Lo (Diesel)

Lo level (2.5v or less) input during the Hi level was being output
In the immobilizer Signal. (Gasoline Engine)
Lo level (2.5v or less) input during the Hi level was being output
to the communication line. (Diesel Engine)

B8016 VEHICLE

SPEED

SIGNAL Hi (Gasoline)
FREQUENCY
SIGNAL Hi (Diesel)

Hi level (more than 2.5v) input during the Lo level was being
output in the immobilizer Signal. (Gasoline Engine)
Hi level (more than 2.5v) input during the Lo level was being
output to the communication line. (Diesel Engine)

B8017 NO

ENGINE

REQUEST
RECEIVED

No request signal received from the engine control unit in a
second after the ignition key has been placed at ON.
(Gasoline engine only)

B8023 ANTENNA

COIL

OPEN

Antenna coil not connected.

B8024 WRONG

TRANSPONDER
RESPONSE

Transponder response signal with the challenge is wrong.

B8025 WRONG

ENGINE

REQUEST

The challenge signal from the engine control unit is invalid.
(Gasoline engine only)

B8055

EEPROM ERROR

Write and read cannot be correctly made to and from the
EEPROM in the control unit.

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.

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.

Gasoline

Engine

897228-184X

Suffix number

Diesel

Engine

897228-183X

Suffix number

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.

DTC appears

B8011 TRANSPONDER KEY PROBLEM

Note : B0011 means Body category Number 0011 Diagnostic Trouble Code.

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

NG

Yes

No

NG

NG

OK

OK

B8012 WRONG TRANSPONDER KEY

B8013 IMMOBILIZER NOT PROGRAMED

Replace ICU

B8014 NO TRANSPONDER KEY PROGRAMED

Replace ICU

B8055 EEPROM

ERROR

Replace ICU

B8015 VEHICLE SPEED SIGNAL Lo (Gasoline Engine)

FREQUENCY SIGNAL Lo (Diesel Engine)

*Speed sensor signal voltage lower than 2.5v. (Gasoline Engine)

*Frequency signal voltage lower than 2.5v (Diesel Engine)

Is key correct?

ICU replacement

Rewrite transponder key.

Rewrite all key

OK

OK

Check other keys

Reregister

transponder key

NG

NG

Check path

between ICU pin 8,ECM

pin for continuity

Disconnect both

connectors and check

path between ICU
and body earth for

continuity

Wiring repair

NG

OK