P0693 means the PCM commanded cooling fan 1 but saw the control circuit pulled low (a short to ground or a driver/circuit fault). On the Grand Cherokee this matters because a fan that will not run properly risks overheating in traffic. The usual causes are the fan module/relay, the wiring, or the fan motor itself — diagnose before replacing the (expensive) fan assembly.
What the real-world data shows
Owner complaints: NHTSA lists 19 recalls and 2,376 owner complaints for the 2014 Grand Cherokee overall (pulled 2026-10-04). The cooling-fan control circuit is not a recall item, but given that history a VIN recall-check at nhtsa.gov is worth a moment.
How often this is searched: P0693 on the Grand Cherokee appears in our first-party Bing search logs, which is why we documented this combination.
Common causes on the Jeep Grand Cherokee
- Failed cooling-fan control module / relay
- Short-to-ground or open in the fan control wiring or connector
- Failed radiator cooling-fan motor drawing abnormal current
- PCM fan-driver fault (rare — rule out wiring and the fan first)
How to diagnose it
- Watch the fan and temperature — Confirm whether the cooling fan actually runs as the engine warms up or the A/C is on. A fan that never spins (or always spins) narrows the fault quickly and tells you how urgent the overheating risk is.
- Check the fan control module/relay and wiring — Inspect the fan control module/relay and its connectors for damage and corrosion, and check the control wiring for a short to ground, which is what "circuit low" implies.
- Test the fan motor — Power the fan motor directly to confirm it runs and does not draw excessive current; a seizing motor can pull the control circuit out of range.
- Repair and verify cooling — Replace the faulty module/wiring/motor, clear the code, and confirm the fan commands on and the engine holds temperature in traffic and with A/C on.
What the fix costs
Typical range: $150–$650 (US). A relay or wiring repair can be modest; the integrated fan module/assembly on the WK2 is the expensive end ($300–650+ installed). Diagnose before buying the full fan assembly.
FAQ
Can I drive with P0693?
Cautiously and not far. If the cooling fan is not running correctly, the engine can overheat in slow traffic or with the A/C on. Watch the temperature gauge closely and get it fixed before any sustained low-speed driving.
What does "fan 1 control circuit low" mean?
The PCM switches the fan through a control circuit; "low" means that circuit read a lower voltage than expected when the fan was commanded — typically a short to ground, a wiring fault, or a module/motor problem pulling the circuit down.
Is it the fan or the module?
Both are common on the WK2. That is exactly why you test the wiring and bench/power-test the fan motor before replacing the fan control module or the whole assembly — the parts are not cheap.
How we researched this
Recall/complaint totals were retrieved 2026-10-04 from NHTSA’s public APIs for the Jeep Grand Cherokee and are vehicle-level, not code-specific. Search demand is from our own Bing Webmaster data. Causes, diagnostic order and cost ranges are restated general service facts. No fabricated statistics are used.
Sources: NHTSA recalls & complaints (Jeep Grand Cherokee); SAE J2012 DTC definition (P0693 — Fan 1 Control Circuit Low); AutoDTCs first-party Bing Webmaster search-demand logs
Last updated 2026-10-04.