ad3036w3003a

Linear vehicle speed limiter (GBL) diagnosis operational check using actual values

Type ad · topic 30.36 · version 0101 · 2003-06-20

Applies to: ENGINE 441.9, 445.9, 446.9 in MODEL 625.1 with CODE (MA1) Linear vehicle speed limiter (GBL) 80 km/h ENGINE 402.9, 440.9, 442.9, 445.9, 446.9 in MODEL 655 with CODE (MA1) Linear vehicle speed limiter (GBL) 80 km/h ENGINE 401.9, 440.9, 441.9, 442.9, 445.9, 446.9 in MODEL 656 with CODE (MA1) Linear vehicle speed limiter (GBL) 80 km/h ENGINE 442.9, 446.9 in MODEL 657 with CODE (MA1) Linear vehicle speed limiter (GBL) 80 km/h ENGINE 440.9, 442.9, 446.9 in MODEL 658 with CODE (MA1) Linear vehicle speed

Where it sits

Function group 1 Engine › 30 Throttle control, speed control systems › 30.36 Speed limiter (GB, GBE, GBL) — Series 440 (models 9**) · Series 441 (models 9**) · Series 442 (models 9**) · Series 625 (models 1**) · Series 655 · Series 656 · Series 657 · Series 658 · Series 659

Also applies to engines/gearboxes: 401 9**, 402 9**, 445 9**, 446 9**

AD30.36-W-3003A

Linear vehicle speed limiter (GBL) diagnosis operational check using actual values

9.1.98

ENGINE 441.9, 445.9, 446.9 in MODEL 625.1 with CODE (MA1) Linear vehicle speed limiter (GBL) 80 km/h

ENGINE 402.9, 440.9, 442.9, 445.9, 446.9 in MODEL 655 with CODE (MA1) Linear vehicle speed limiter (GBL) 80 km/h

ENGINE 401.9, 440.9, 441.9, 442.9, 445.9, 446.9 in MODEL 656 with CODE (MA1) Linear vehicle speed limiter (GBL)
80 km/h

ENGINE 442.9, 446.9 in MODEL 657 with CODE (MA1) Linear vehicle speed limiter (GBL) 80 km/h

ENGINE 440.9, 442.9, 446.9 in MODEL 658 with CODE (MA1) Linear vehicle speed limiter (GBL) 80 km/h

ENGINE 401.9, 440.9, 442.9, 445.9, 446.9 in MODEL 659 with CODE (MA1) Linear vehicle speed limiter (GBL) 80 km/h

Linear vehicle speed limiter (GBL) function diagram

GF30.36-W-0003-01A

Linear vehicle speed limiter (GBL) diagnosis, previous knowledge

AD30.36-W-2002A

GBL diagnosis tools

AD30.36-W-2002-01A

a

Vehicle voltage 22.5-29.5 V

b

Connect Hand-Held Tester (HHT)

AD00.00-W-2000-03A

Function check

Actual value/meaning

Operation/requirement

Specified value

Notes

Speed

Ignition: ON

Drive vehicle or connect frequency generator to vehicle speed sensor cable (green/yellow) below electrical compartment.

Adjustment on frequency generator:

1 kHz/10 Vs

0-112 km/h (momentary speed)

Can be compared with indication from tachograph.

Max. speed

Ignition: ON

XXX km/h (coded speed)

Coding possibilities

AD30.36-W-2002-03A

Vehicle

(control response)

coding RQ/RQV

Ignition: ON

1 LK/RQ

2 MK/SK/RQ

3 MK/SK/RQV

4 LK/RQV

Coding possibilities

AD30.36-W-2002-03A

LK = light class

MK/SK = medium heavy and heavy class

RQ/RQV = injection pump controller

Linear actuator (position)

(coding starting-off lock)

Ignition: ON

lengthened

shortened

At present the display specified value is always lengthened, as the starting-off lock is not required.

Engine brake

Ignition: ON

Actuate engine brake.

(increase engine rpm, with retarder drive vehicle).

ON

Engine stop

Ignition: OFF

ON

At engine stop ON actual value 05 engine brake ON is also displayed.

This applies with corresponding vehicle wiring (with bridge from terminal I-10/3 to terminal I-10/10 on control unit, refer to wiring diagram).

Fault lamp (GBL)

Ignition: ON

> 7 km/h

OFF

But only if fault lamp is connected via microprocessor (μP).

Linear actuator on/off ratio (ASR)

Ignition: ON

XX %

If ASR signal is faulty, 0% is displayed

Referenced documents