What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
4Original wording in English
VOLVO
Reported code forms P204201
Diagnostic Trouble Code (DTC) P204201: Diagnostic Instructions - US17+OBD16 Emissions And Newer
VOLVO
Reported code forms P2042-01
Diagnostic Trouble Code (DTC) P2042-01: Diagnostic Instructions US17+OBD16 Emissions And Newer
MACK
Reported code forms P2042-01
Diagnostic Trouble Code (DTC) P2042-01: Diagnostic Instructions - US17+OBD16 Emissions And Newer
MACK
Reported code forms P2042-01
Diagnostic Trouble Code (DTC) P2042-01: Diagnostic Instructions -Â Â US17+OBD16 Emissions And Newer
Check vehicle applicability
21A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Mack | GRANITE (GR) | 2021 |
| Mack | GRANITE (GR) | 2020 |
| Mack | GRANITE (GR) | 2019 |
| Mack | GRANITE (GR) | 2018 |
| Mack | GRANITE (GR) | 2017 |
| Mack | GRANITE (GR) | 2016 |
| Mack | GRANITE (GU) | 2021 |
| Mack | GRANITE (GU) | 2020 |
| Mack | GRANITE (GU) | 2019 |
| Mack | GRANITE (GU) | 2018 |
| Mack | GRANITE (GU) | 2017 |
| Mack | GRANITE (GU) | 2016 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.