Solution K74362312
Tuesday, March 6, 2018 5:11:17 PM CET

Solution
Title (customer effect)

Aftertreatment Control Module ( ACM ) Diagnostic Trouble Codes ( DTC ) U0001-88
and U0010-88 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate
Warning – US10 And Newer Chassis

Cause

ACM harness rubbing and chafing can cut into wires, resulting in DTCs and loss of
communication with the ACM. ACM faults can result in derate conditions.

Solution

Required Parts
- Separator Tie, Part 20885497:

- Harness Tape, Part 20469544

Inspection
If either of these codes are present, check the wiring harness for damage or chafing in
the following areas:

I. ACM Breakout Harness:

A. Chafing or Rubbing between harnesses:

If contact between the harnesses is found, resecure them with a separator tie to
keep them apart.
B. Chafing or Rubbing at the clipping point (cable tie) securing the harness near
the FCUT connector:

If the cable tie is found to be cutting into the wire insulation, remove the cable
tie, wrap the exposed wires in harness tape and re-clip the harness securely.

II. Air Compressor Discharge Hose
Check the section of the AHI harness that passes by the air compressor discharge line:

If the ACM harness is rubbing the air compressor discharge hose, make sure the
harness is clipped to the airline bundle securely as shown above. Attach a separator tie
between the harness and the discharge hose to keep the two apart.

III. Diesel Exhaust Fluid ( DEF ) Supply and Return Lines
Check the section of the AHI harness that passes by the DEF supply and return lines:

If the harness is contacting the DEF lines, attach a separator tie between the harness
and the lines to keep them apart.

IV. Frame Rail
Check the area where the ACM harness passes by the frame rail:

The harness should not contact tthe edge of the frame rail. If there is contact with the
edge, the harness needs to be properly secured to its clipping brackets so it is able to
clear the rail.
Solution visibility

Dealer distribution

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

battery/power supply , wiring harness , CAN BUS J1939 / BACKBONE 1 , CAN BUS
BACKBONE 2 , CAN BUS POWERTAIN SUBNET , 2 1 0 ACM

Function Group
Function Group

254 catalytic converter; exhaust emission control equipment , 258 emissions aftertreatment , 286 engine wires and mounting parts , 37 cable; fuse

Customer effect
Main customer effect

regeneration , efficiency/abnormal behavior , fault code/display

Visual appearance

fretted , loose , wear

Fault code(s)
OBD 2013 Diagnostic
Trouble Codes

U0010-88 , U000188

Conditions
Vehicle operating mode
Frequency of occurrence of
problem

when driving , when stationary
random

Administration
Author

UT0538V

Dealer ID

RU4469V

Last modified by

RU4469V

Creation date

30-01-2018 18:01

Date of last update

08-02-2018 21:02

Status

Published

Average score

5

Number of scores

1

NA_MACK_Vehicle_Range
NA_MACK_Vehicle_Ran
ge

Conventional

NA_VOLVO_Vehicle_Range
NA_VOLVO_Vehicle_Ra
nge

Conventional

Engine family
Engine family

Volvo , Mack

Emission Standard
Emission Standard

2018 , OBD2017 , US17 GHG , US16 , US15 , US13 OBD , US14 GHG