Display group 50 (Speed regulation) Operating condition Engine running at idling speed
Read Measuring Value
Block 50 Indicated on display
Manual transmission Automatic transmission
760 RPM 700 RPM
---
Engine speed (idling speed):
Manual transmission Automatic transmission
For display zone 2:
The specified engine speed from engine control module (calculated in control module) is displayed. In exceptional cases the idling speed can be adapted Page 24-100 . The idle speed figures with gear selected are then automatically modified.
Note:
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A/C-High = Air conditioner demands too high a heating or cooling output A/C-Low = Air conditioner not switched on.
Note:
For display zone 4:
"Compr. OFF" is always displayed on vehicles without air conditioner.
Checking signal from and to air conditioner compressor Page 24-166 Display group 54 (Speed regulation)
While driving Read Measuring Value
Block 54 Indicated on display
xxxx
RPM Text xxx% xxx%
1 2 3 4 Display zones Specification Evaluation Angle sensor -1- for
throttle drive (power accelerator actuation)
Manual transmission Automatic transmission
Display group 55 (Speed regulation) Idling stabilization Engine running at idling speed
Read Measuring Value Block
55 Indicated on
Air conditioner on (A/C High)
Air conditioner off (A/C Low)
Manual transmission Automatic transmission
For display zone 3:
Displayed is the amount that the idling speed stabilization has moved away from the prescribed average. For a new engine the values lie in the positive range, because of the
Significance of 5 digit number block Significance if display = 1 1 2 3 4 5 Significance
1 Air conditioner compressor switched on 1 Driving range (gear) selected
1 Air conditioning system switched on 1 Rear window defroster on
1 Power assisted steering pressure switch on
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Display group 56 (Speed regulation) Idling speed stabilization Engine running at idling speed
Read Measuring Value
Block 56 Indicated on
Manual transmission Automatic transmission
760 RPM 700 RPM
---
Engine speed (idling speed):
Manual transmission Automatic transmission
Readiness code
Display group 60 (Speed regulation) Adaptation EPC system 1) Ignition on, engine not running
Control unit in mode 04 basic setting Read Measuring Angle sensor -1- for throttle drive (power accelerator
actuation) -G187- 3 to 93% ---
1) Adapting engine control module to throttle valve control module Page 24-152 . Note:
For display zone 60:
Matching the throttle valve control module is performed with ignition switched on.
Engine control module is adapted to throttle valve control module when selecting display group 60 under function 04 "Basic setting". This adaptation must always be carried out when another throttle valve control module (or another complete engine) or another engine control module is installed.
The counter counts up to 8 in display zone 3 during the adaptation.
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Display group 61 (Speed regulation) Electronic Power Control (EPC) While driving
Read Measuring Value
Block 61 Indicated on
display
xxxx
RPM xx.xxx
V xxx% xxxxx
1 2 3 4 Display zones Specification Evaluation
Operating condition xxxx Page
01-211 Throttle drive (power
accelerator actuation) -G186- 0 to 100% --- Supply voltage for engine control
module 12.0 to 15.0 V Page
01-176 Engine speed (idling speed)
Manual transmission Automatic transmission
700 to 6800 RPM 640 to 6800
RPM
Page 01-171
Display group 62 (Speed regulation) Electronic Power Control (EPC) Ignition on, engine not running
Read Measuring Value
Block 62 Indicated on display
xx% xx% xx% xx%
1 2 3 4 Display zones Specification Evaluation
Sender -2- for accelerator
pedal position -G185- 0 to 100%
--- Throttle Position (TP) Sensor
12 to 97% ---
Angle sensor -2- for throttle drive (power
accelerator actuation) -G188- 97 to 3% --- Angle sensor -1- for throttle drive (power accelerator
actuation) -G187- 3 to 93% ---
Note on display zone 4:
The entire display range is given.
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Vehicles with automatic transmissions
Display group 63 (Speed regulation) Kick down adaptation Ignition on, engine not running
Control unit in mode 04 basic setting Accelerator pedal fully depressed Read Measuring Value
Block 63 Indicated on display
xx% xx% Text Text
1 2 3 4 Display zones Specification Evaluation
Operating mode (ERROR,
actuate, ADP. runs, ADP.
OK
ADP. OK
Page 01-211
Kick-down switch Kick-down ---
Sender 2 for accelerator pedal position
-G185- 0 to 100% ---
Throttle position (TP) sensor -G79- -25 to 25% --- Note:
The entire display range is given.
Vehicles with engine code AWP and cruise control system (CCS) Display group 66 -Cruise control system
Engine running at idling speed Read Measuring Value
Block 66 Indicated on display
km/h xxxx km/h xxxx
1 2 3 4 Display zones Specification Evaluation
Switch position of CCS
controls switch 00000011 Page 01-220 Specified road speed (last
value stored by CCS)
--- ---
Brakes, clutch and CCS switches
position 00001000 Page
01-220
Road speed (actual) 0 km/h ---
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Significance of the numbers in the 8-digit display, display field 2, brake and cruise control switch
Note:
Only the last four digits of the 8-digit display are described in the following table.
1 0 1 1 Significance
Brake depressed (brake light switch) Brake depressed (brake pedal switch)
Constant 0 for vehicles with automatic transmission (clutch switch) Cruise control system operational
Checking brake light and brake pedal switch Page 24-182 .
Set cruise control system to operational with log-in code 11463; deactivate with log-in code 16167.
Electrical system; Repair group 27
Significance of the numbers in the 8-digit display, display field 4, cruise control switch
Note:
Only the last four digits of the 8-digit display are described in the following table.
1 1 0 0 Significance
CCS sliding switch at off (locked only; not locked = 1) CCS sliding switch at off (locked)
SET button depressed CCS sliding switch at RES
Vehicles with engine code AWW and cruise control system (CCS) Display group 66 -Cruise control system
Engine running at idling speed Read measured value
block 66 Indicated on display
km/h xxxx km/h xxxx
1 2 3 4 Display zones Specification Evaluation
Switch position of CCS
controls switch 0000 Page
01-220 Specified road speed (last value
stored by CCS)
--- ---
Brakes, clutch and CCS switches
position 1000 Page
01-220
Road speed (actual) 0 km/h ---
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Significance of the figures in the 4 digit display, display zone 2, brakes, clutch and CCS switches position
1 1 1 1 Significance
Brake depressed (brake light switch) Brake depressed (brake pedal switch)
Clutch depressed or on automatic transmission brake depressed Cruise control system operational
Note:
For 4 digit display:
Checking clutch pedal switch -Engine code AWW: Page 24-176 ; Engine code AWP:
Page 24-170 .
Checking brake light and brake pedal switch Page 24-182
Set cruise control system to operational with log-in code 11463; deactivate with log-in code 16167.
Significance of the figures in the 4 digit display, display zone 4, CCS control switches
1 1 0 0 Significance
CCS sliding switch at off (switch locked only)
CCS sliding switch at off (switch not locked or locked) SET button depressed
CCS sliding switch at RES Note:
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