Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 276

DTC appears

B8001 REPLACE ELECTRONIC CONTROL UNIT (ECU)

(IMMOBILIZER FAULT)

Replace ICU

B8002 IMMOBILIZER NOT PROGRAMMED

Programming Immobilizer Function.

B8003 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 B8003 appear?

Correction check

ICU replacement

Transponder replacement

OK

OK

NG

Yes

No

NG

NG

OK

OK

B8004 IMMOBILIZER COIL CIRCUIT (ANTENNA COIL FAULT)

B8005 COMMUNICATION LINE W VOLTAGE Low

B8006 COMMUNICATION LINE W VOLTAGE High

Check path between

ICU pin A-1 and pin A-3

for continuity

Replace steering lock Assy

NG

Clear DTC

OK

Check for

Ext Harness; Antenna

ICU

Connector 2 pin

A1

A3

Antenna coil

NG
Correction

NG

Need following repair
1. Key replacement
2. Rewrite transponder
3. Replace door key cylinder

Disconnect both

connectors and check

voltage on ICU side.

voltage

Ǩ 2.5v

Wiring repair

Yes

Clear DTC

No

Check path

between ICU pin B-8,ECM

pin for continuity

Disconnect both

connectors and check

path between ICU
and body earth for

continuity

Wiring repair

NG

OK

B8007 NO ENGINE REQUEST RECEIVED

B8008 WRONG TRANSPONDER KEY

B8009 NO TRANSPONDER KEY PROGRAMMED

B8010 UNKNOWN TRANSPONDER KEY

Check path ICU

pin B-7 and ECM pin A-39

for continuity

Replace ECM, because ECM internal circuit fails.

OK

Wiring repair

NG

Is key correct?

ICU replacement

Rewrite transponder key.

Rewrite all key

OK

OK

Check other keys

Reregister

transponder key

NG

NG

Reregistration

ICU replacement

NG

Rewrite transponder

Immobilizer system Electrical wiring

Gasoline Engine (6VD1 3.2L)