Solution K42708399
Tuesday, February 6, 2018 8:52:34 PM CET

Solution
Title (customer effect)

Diagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light (
MIL ) - OBD15 And OBD16 Chassis (Non-Common Rail)

Cause

OBD15 and OBD16 chassis may log DTC P0422.

Solution

Overview
When P0422 is triggered troubleshooting through Guided Diagnostics may complete
with No Fault Found (NFF).

Repair
Verify the chassis emissions level
• Details can be found in the Product Details box on the Product tab in PTT as seen
below:

For OBD15 (Commonly Year Model 2016) Chassis ONLY:
- Software improvements have been released to address this code. If P2002 is
present and there are no other symptoms to indicate a physical issue, software
should be checked and updated as necessary.
- Two modules are affected by this update and should be reprogrammed in the
following order:
1. Engine Control Module ( EMS )
2. Aftertreatment Control Module ( ACM )
- If the code returns following the software update, normal diagnostic
procedures will need to be followed.
- P0422 may set in relation to other codes logged or the presence of
related symptoms. Address related issues first.

For OBD16 (Non-common rail) Chassis:
- Ensure software levels are current.
- Review the complete DTC readout for related codes and customer complaint
for related symptoms.
- P0422 may set in relation to other codes logged or the presence of
related symptoms. Address related issues first.
- If there are no other symptoms or codes, proceed with Guided Diagnostics.

Solution visibility

Dealer distribution

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

TT

, exhaust

Function Group
Function Group

254 catalytic converter; exhaust emission control equipment , 258 emissions aftertreatment

Customer effect
Main customer effect

diagnostics/methodology , efficiency/abnormal behavior , fault code/display

Fault code(s)
OBD 2013 Diagnostic
Trouble Codes

P0422

Conditions
Vehicle operating mode
Frequency of occurrence of
problem

when driving , when stationary
always

Administration
Author

UT01793

Last modified by

RU4469V

Creation date

28-11-2016 19:11

Date of last update

09-01-2018 19:01

Status

Published

Average score

2

Number of scores

1

NA_MACK_Vehicle_Range
NA_MACK_Vehicle_Ran
ge

Cabover , LR , LEU , MRU , Conventional , CHU , CXU , GU , TD

NA_VOLVO_Vehicle_Range
NA_VOLVO_Vehicle_Ra
nge

Engine family

Conventional , VNX , VNL , VNM , VHD , VAH

Engine family

Volvo , 11L Engine , 13L Engine , 16L Engine , Mack , MP7 , MP8 , MP10

Emission Standard
Emission Standard

US16 , US15