OBD-II code · Powertrain (generic)
P017E Cylinder Head Temperature Sensor A Circuit Intermittent/Erratic
Intermittent signal from CHT sensor A. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P017E?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyConnector loose or corroded
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Cht Sensor, Sensor Wiring
Related codes
- P017BCylinder Head Temperature Sensor A Range/Performance
- P017CCylinder Head Temperature Sensor A Circuit Low
- P017DCylinder Head Temperature Sensor A Circuit High
- P017FEVAP System Leak Detection Pump Module Air Filter Restricted
- P0180Fuel Temperature Sensor A Circuit Malfunction
- P0181Fuel Temperature Sensor A Circuit Range / Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.