an5461a3000a

Retrofit modular tachograph (MTCO)

Type an · topic 54.61 · version 0101 · 2018-08-08

Applies to: Model 8AC906.633/657 with code JV6 (Tachograph pre-installation kit) with code ZL3 (National version for Latin America)

Where it sits

Function group 2 Chassis › 54 Electrical system, equipment and instruments › 54.61 Speed recorder, trip recorder, taximeter — Series 906 (models 633, 657)

EinPAS 31 Communication/information/entertainment › 31.35 Tachograph/toll system › 31.35.3 Retrofitting/modification — Series 906 (models 633, 657)

AN54.61-A-3000A

Retrofit modular tachograph (MTCO)

20.07.2018

Model

8AC906.633/657

with code JV6 (Tachograph pre-installation kit)

with code ZL3 (National version for Latin America)

Retrofit modular tachograph (MTCO)

A56

Tachograph

N72/1

Upper control panel control unit

D54.61-1157-05

Topical note

Notes on carrying out repair work in the vehicle interior

AH68.00-N-0001-01S

Remove

1

Remove stowage compartment below upper control panel (UCP) control unit (N72/1).

The stowage compartment is no longer required.

2

Connect tachograph (A56) afterwards and install.

AN54.61-D-2000-03A

PIN assignment for white connector:
1 =  Circuit 30, battery signal (red / violet)
2 = Circuit 58, lighting of tachograph display  (gray / blue)
3 = Circuit 15, contact signal (black / yellow)
4 = Can H (green / white)
5 = Circuit 3 ground (brown)
8 = Can L (green)
PIN assignment for yellow connector:
1 = Signal + (black)
2 = Signal ­ (brown)
3 = Signal A1 (blue)
4 = Signal A2 (white)

3

Connect diagnostic system and select vehicle using vehicle identification number (VIN).

AD00.00-D-2000-04SD

4

Enter special equipment in online vehicle data card via vehicle documentation system (VeDoc).

Remove code: JV6 (Pre-installation tachograph)
Enter code: J05 (Latin America tachograph)

5

Perform variant coding with XENTRY using the software calibration number (SCN).

AR54.21-D-0015X


Conduct all listed parameterization adjustments.
Otherwise errors may occur and system operation will not be synchronized.

Variant coding with XENTRY using the software calibration number (SCN) must be carried out for the following control units:
 "EIS module"
 "ESP module"
 "IC module"

After conducting the SCN coding the complete driven distance might not be displayed in the instrument cluster. This problem is automatically solved by removing the ignition key after approx. 15 minutes.

6

Enter "C" constants into tachograph (A56).

Installation: The calibration of the tachograph (A56) must be conducted by a representative of the VDO company using the required devices.

For a rear axle gear ratio of 52:11 (4.727) and -depending on the tire size - the following “C” ­  constants must be taken into consideration:
Tire size 225/75 = "C" ­ constants 12583
Tire size 205/75 = "C" ­ constants 13046
Tire size 195/75 = "C" ­ constants 13284

7

Disconnect diagnostic system.

AD00.00-D-2000-04SD

8

Perform function test.

Observe national legal requirements for tachograph testing.

Referenced documents