Fault codes › P065D
P065D
Reductant System Malfunction Lamp Control Circuit
Generic code
Computer Output Circuit
High severity
Hard repair
Free on OBD DashX
Want real-world data on P065D?
See which problems come with P065D, how often it shows up in other vehicles, and how to fix it — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
See P065D on OBD DashX
No sign-up needed · available in 10 languages
iWhat P065D means
- ECM (car computer) not able to read Check Engine Light or MIL lamp signals, and thus may not be able to do its job properly
!Possible symptoms
- The transmission not shifting in or out of a particular gear
- Engine hesitation
?Possible causes
- Faulty Malfunction Indicator Lamp Bulb
- Malfunction Indicator Lamp Bulb harness is open or shorted
- Malfunction Indicator Lamp Bulb circuit poor electrical connection
- Faulty Engine Control Module (ECM)
⚙Related parts
- Reductant System Lamp: Bulb on the Instument Panel that denotes a fault in the reductant system. This car's bulb doesn't work
✓Possible solutions
- Inspect the fuel gauge control circuit
- If you find the circuit grounded, repair the fuel gauge control circuit