Solution K59025056
Friday, November 2, 2018 9:14:31 PM CET

Mack Models
Mack Model

TE-TerraPro , MRU-TerraPro , GR-Granite , PI-Pinnacle , AN-Anthem , CHUPinnacle, Axle back , CXU-Pinnacle, Axel forward , GU-Granite , TD-Titan

Engine family
Engine family

MP7 , MP8 , MP10

Emission Standard
Emission Standard

2018 , OBD2017 , US17 , US17+OBD16 , US17+OBD18 , US16 , US15 , US13
OBD , US14

** SOLUTION **
Title

Mack Chassis - Equipped With An Automated Manual Transmission Model D or F (
AMT-D, AMT-F, mDrive ) Missing X1 Value In VDA And Default Settings Guidelines,
Parameter P1AOB; Fault Code P1052-54, Error 40, Or Error 18 Encountered During
Clutch Or Transmission Calibration ( R1AAE ) - US10+OBD13 Emissions And
Newer, Model Year 2014 And Newer

Cause
It has been found in some AMT equipped chassis that the X1 parameter value (P1AOB)
has not been registered to Vehicle Data Administration ( VDA ), or is set to a value of
"0". This will result in immediate failure of the calibration operation and a message
advising that error code 18 or error code 40 has been generated.

This issue is discovered only when a transmission or clutch calibration is attempted after
repairs such as clutch replacement, the Transmission Electronic Control Unit (TECU)
software is updated, or after an Over The Air (OTA) programming event.

Solution

If transmission or clutch calibration fails immediately after the operation is
started following a clutch replacement or programming operation with the
Errors above:
1. Disconnect the TECU from the chassis wiring harness.
2. Connect directly to the transmission with PTT using the appropriate adapter.
3. Perform operation 4000-07-04-01 Transmission Calibration (Transmission Removed),
located under the Calibrate tab.
4. After successful calibration, reconnect the chassis harness to the TECU.
5. Run Operation 4320-07-03-01 Transmission, Clutch Engagement Point Calibration.
Select Option B.

If the calibration is successful: The existing invalid X1 value has been overwritten and the remainder of the repairs (if any) can be completed.
If the calibration fails again with the same error code for R1AAE routine: An
eService case is required for additional assistance.
• The eService case MUST include:
- This Solution Number
- A description of the original customer complaint.
- A thorough description of all work performed up to the point of the case's
creation.
- A DTC Readout if codes are present, active OR inactive.
- Any screenshots or photos that are relevant to this situation.
Internal comments (BO)

If an eService case is submitted for this issue:

1. Check that parameter P1AOB Clutch X1 Default Value is loaded to the
vehicle in VDA or Configurator.
If P1AOB is missing, set to 0 or set to an invalid value it must be added and/or
updated with the correct value below:
• AMT-D: 25.0 mm
• AMT-F: 20.0 mm
If P1AOB is present and set correctly: The gear selector should be checked to verify
that it is reporting Neutral to the TECU.
NA_Sister solutions

K34249333

Solution visibility

Dealer distribution

Function(s)/component(s) affected
Function affected

automatic transmission

Function Group
Function Group

431 gearbox, manual

Customer effect
Main customer effect

calibration/programming/pairing/missing operation , fault code/display

Fault code(s)
OBD 2013 Diagnostic
Trouble Codes

Error 43 , P1052

Conditions
Other conditions

after a workshop procedure on the vehicle

Administration
Author

RU4469V

Dealer ID

UT9268H

Last modified by

RU4469V

Creation date

10-10-2018 22:10

Date of last update

11-10-2018 14:10

Review date

01-01-2020 00:01

Status

Published

NA_Reviewer

UT9268H

NA_Author_Group

GTT