Volkswagen Golf / Golf GTI / Jetta. Manual — part 175

01-242

Display group 57 - Speed control - Idling stabilization

Engine running at idle

Read measured value
block 57

Indicated on

display

xxxx
rpm

xxxx
rpm

Text

---

1

2

3

4

Display zones

Specification

Evaluation

No display

---

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Air conditioning compressor
operating mode

(Compr. ON / Compr. OFF)

Compr. ON or

Compr. OFF

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Engine speed (specified idle
speed)

700 rpm

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Engine speed (actual idle speed)

640...720 rpm

Page 01-

188

Notes on display zones 1 and 2:

The rpm in display zone 1 (measured revolutions) is the actual engine speed.

The rpm in display zone 2 (specified rpm) is theoretical engine speed calculated by

the Motronic Engine Control Module (ECM) -J220-. at idle, the Motronic Engine
Control Module (ECM) -J220- always tries to adapt the actual engine speed to the
specified engine speed.

Measured value (data) blocks

01-243

Display group 60 - Speed control - Electronic power control (EPC) system
adaption

1)

Control module in function "04-Basic setting"

Ignition on, engine not running

System in basic
setting 60

Indicated on display

xxx % xxx % x Text

1

2

3

4

Display zones

Specification Evaluation

Adaption status

(ADP. runs / ADP. OK. /
ADP ERROR)

ADP. OK.

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Learning step counter

0...8

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Throttle valve angle

Angle sensor -2- for throttle drive -
G188-

100...0 %

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Throttle valve angle

Angle sensor -1- for throttle drive -G187-

0...100 %

---

1)

Erase learned values and adapt (match) Motronic Engine Control Module (ECM) -

J220- to Throttle Valve Control Module

Page 24-182

.

Measured value (data) blocks

01-244

Note on display group 60:

Adapting the Throttle Valve Control Module -J338- is performed with ignition

switched on.

Motronic Engine Control Module (ECM) -J220- is adapted to throttle valve control

module when selecting display group 60 under function "04-Basic setting". This
adaption must always be carried out when another Throttle Valve Control Module -
J338- (or another complete engine) or another Motronic Engine Control Module
(ECM) -J220- is installed.

The specifications indicated in display zones 1 and 2 do not fully reach the max. min.

figures.

The throttle valve angle sensors are opposed. The values from both angle sensors

must always add up to approx. 100 %.

The counter counts from 0 to 8 in display zone 3 during the adaption.

Measured value (data) blocks

01-245

Display group 61 - Speed control - Electronic Power Control system

While driving

Read measured value
block 61

Indicated on

display

xxxx
rpm

xx.xxx

V

xxx.x

%

xxxxx

1

2

3

4

Display zones

Specification

Evaluation

Operating
condition

xxxxx

Page 01-

240

Throttle valve angle

Angle sensor -1- for throttle
drive -G187-

0.0...100.0 %

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Voltage supply for Motronic Engine
Control Module (ECM) -J220-

11.500...15.000

V

Page 01-

194

Engine speed

640...6500 rpm

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Note on display zone 3:

The specifications do not fully reach the max./min. figures.

Measured value (data) blocks