P0696 — Fan Control Circuit Intermittent
What it means: Fan Control Circuit Intermittent.
How serious / can you keep driving: Caution. Limp to the next safe stop.
Check first: Wiggle test fan control harness
Don't risk it — look up listed providers near you and give them this code when you call.
Listed providers nearest Ocala, FL
Closest first. Tell them P0696 and what the truck is doing. RoadService.app lists these providers and does not employ them or carry out the repair.
- 0.0 mi away — based in Ocala, FL · (352) 830-1899
- 0.0 mi away — based in Ocala, FL · (352) 620-0740
- 0.0 mi away — based in Ocala, FL · (352) 497-0277
Seen on: Heavy Truck
What P0696 means
Fan Control Circuit Intermittent. Common causes: Fan control circuit intermittent.
How serious is it?
Caution. Limp to the next safe stop.
Most likely causes
- Fan control circuit intermittent
- Loose connector
- vibration-sensitive wiring
First moves (roadside)
- Wiggle test fan control harness
- secure loose connectors
- replace wiring if chafed
FAQ
Fan Control Circuit Intermittent. Common causes: Fan control circuit intermittent.
Caution — Limp to the next safe stop.
The most common cause is: Fan control circuit intermittent. Other possibilities include Loose connector; vibration-sensitive wiring.
Limp to the next safe stop. When in doubt, get a qualified mobile diesel tech on the truck before continuing.
Related codes
Codes that commonly appear alongside P0696, or share the same subsystem.
- Coolant level — low (SPN 111 FMI 1)
- Engine Coolant Temperature — Too High (SPN 110 FMI 0)
- Coolant temp sensor — voltage high (SPN 110 FMI 3)
- Coolant temp sensor — voltage low (SPN 110 FMI 4)
- Coolant temperature — moderately high (SPN 110 FMI 16)
- Engine Coolant Over-Temperature Condition (P0217)
- Coolant Thermostat Below Regulating Temperature (P0128)
- Fan 1 Control Circuit Malfunction (P0480)
Find a mechanic or related guides
General diagnostic guidance for diesel engines (Cummins, Detroit, PACCAR, Volvo, Mack and more). Not a substitute for a scan-tool diagnosis on your specific truck.