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SsangYong Musso. Manual - part 39

IMMOBILIZER SYSTEM 9W-9

Check and Remedy when Engine Does not Start

Starter operates normally?

Yes

Check fuses (No. 8 and 27)

Check ECU and antenna power

ECU terminal

- No. 12 (Power)

- No. 11 (Ignition)

- No.5/10 (Ground)

Check battery voltage

Check battery wiring

Check signal wires between ECU

and antenna

Immobilizer No.3 wire (0.5BY) =

ECU No. 14 pin (0.75BW)

: Writing immobilizer code number

Immobilizer No.4 wire (0.5Y) =

ECU No.13 pin (0.75Y)

: Reading immobilizer cod number

Check starter wires

Check TCU wires (only for 5-

speed automatic transmission)

Check starter and TCU

ECU No.2 pin : check normal
signal of the starter

- Engine cranking voltage : 8-15V

Check engine speed sensor wires

and replace

Replace immobilizer antenna

Replace transponder and ECU

Notice

MSE ECU equipped vehicle is designed to
make fuel injection when the engine speed
for initial cranking is over 450rpm if there
are no start switch inputs in ECU No. 2 pin.

If transponder and ECU are replaced,
perform programming.

9W-10 IMMOBILIZER SYSTEM

1. Connect/replace the wire correctly

2. Replace the transponder

3.1 Replace the valve

3.2 Turn Ign sw on

3.3 Turn Ign sw OFF & ON

Defects

Possible cause

Remedy

No communication with
transponder

1. Defective wiring harness

- Power supply/Open/short of ground

- Open/short of signal terminal or

mis-conneting(between ICU

terminal No. 13 and 14)

1. Connect/replace the wire correctly.

2.1 Replace the transponder

2.2 Immobilizer programming

2. Damaged transponder

3. Replace the antenna

3. Defective antenna

4.1 Replace the ICU

4.2 Replace all transponder of the keys

4.3 Immobilizer programming

4. Defective ICU

No immobilizer
programming
(Components and
wiring harnesses are
normal but codes in
ICU and transponders
are not registered
normally)

1. Replace the transponders and ICU

with new

; Immobilizer programming is not

performed

1. Perform immobilizer programming

2. Replace transponders only(new)

; Immobilizer programming is not

performed

2. Perform immobilizer programming

3. Replace ICU only(new)

3.1 Replace the transponders with new

3.2 Perform immobilizer programming

4. Replace the transponder only

; Programmed for other ICU

4.1 Replace the transponders with new

4.2 Perform immobilizer programming

5. Re-programming is not performed

after clearing transponder code stored

in ICU that normally used system

5. Immobilizer programming

Notice

1. Application of ex-programmed transponder into other ICUs.

; In this case, it can not be removed for the settled “lock bit” in transponder even though you perform immobilizer

problem normally. Moreover it is impossible to start engine, so replace the transponder with new and perform
immobilizer programming.

DIESEL ENGINE

Cause and Remedy for Defective When Diagnosed by Scanner

No communication with
valve

1. Defective wiring harness

- Power supply/Open/short of ground

- Open/short of signal terminal or

mis-conneting(between ICU

terminal No. 13 and 14)

2. Defective ICU

3. Defective valve

IMMOBILIZER SYSTEM 9W-11

Check and Remedy when Engine Does not Start

Starter operates normally?

Yes

Check fuses (No. 19)

Check ECU and antenna power
and solenoid valve

ECU terminal

- No. 9 (Ignition)

- No. 6 (Ground)

Check battery voltage

Check battery wiring

Check signal wires between ICU

and antenna

Immobilizer No.3 wire (0.5Y) =

ICU No. 1 pin (0.75BW)

: Writing immobilizer code number

Immobilizer No.4 wire (0.5G) =

ECU No.3 pin (0.75Y)

: Reading immobilizer cod number

Check starter wires

Check TCU wires (only for 5-

speed automatic transmission)

Check starter and TCU

ECU No.2 pin : check normal
signal of the starter

- Engine cranking voltage : 8-15V

Check engine speed sensor wires

and replace

Replace immobilizer antenna

Notice

New valve is possible coded either with a
new ICU or an already used ICU. But old
coded valve is only possible coded with a
new ICU.

If transponder and ICU are replaced,
perform programming.

Replace transponder and ICU

Replace the valve

1. Turn Ign sw ON

2. Turn Ign sw OFF & ON

(To learn the valve correctly it is necessary
to switch on Ignition twice for at least 5
seconds.)

9W-12 IMMOBILIZER SYSTEM

SCHEMATIC AND ROUTING DIAGRAMS

GASOLINE ENGINE (HFM) IMMOBILIZER

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