P2380
Wait to Start Lamp Control Circuit
The ECU detects an electrical fault on the wait-to-start indicator output of the diesel preheat system. The driver may not get a correct preheat indication.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Indicator bulb / LED failurePossible
- Wiring fault to instrument clusterPossible
Parts involved
- Wait To Start Lamp
- Instrument Cluster
P2380 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.