P0694 OBD-II Trouble Code: Fan 2 Control Circuit High

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0694 code

P0694 is a diagnostic trouble code (DTC) for "Fan 2 Control Circuit High". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0694 DIAGNOSTIC Get a fair and transparent estimate upfront

P0694 code definition

The P0694 trouble code indicates that the vehicle's electric cooling fan control circuit has had an irregular voltage level registered by the Powertrain Control Module (PCM).

What the P0694 code means

The PCM keeps track of voltage levels in a wide array of vehicle components, including the electric cooling fan. Although the particulars may vary depending on the model and manufacturer, the PCM will typically report a trouble code if the circuit voltage falls more than 10% away from the manufacturer specifications.

What causes the P0694 code?

In the majority of cases, a faulty cooling fan motor or relay is to blame for a P0694 trouble code. However, the code may also be the result of electrical issues, including corroded or faulty electrical connectors and shorted wiring. It is also possible that the engine coolant temperature sensor itself is faulty, and may be reporting false information to the PCM as a result.

What are the symptoms of the P0694 code?

Fortunately, a P0964 trouble code is relatively insignificant, and will also pose minor issues to the vehicle if any. In the majority of reported cases, no practical symptoms are reported. If any problems are present, the engine may overheat and the air conditioner may not work as well as it should. Also, for the sake of diagnosing the problem, the dashboard trouble light will be illuminated and the P0694 trouble code will be stored in the vehicle's computer.

How does a mechanic diagnose the P0694 code?

  • To start, a mechanic should scan the vehicle's computer with an OBD-II code reader in order to pick up the P0964 code, as well as any other issues registered via the PCM

  • If the P0964 has been verified, the electrical cooling circuit should be inspected for any visible signs of fault, disconnection or damage

  • The electrical cooling fan motor and relay should be looked at thoroughly and tested to ensure they are working properly

  • Any system-related wiring (including electrical connectors) should also be checked out for signs of potential issues

  • If all components are shown to be working, the sensor should be inspected for potential signs of fault

Common mistakes when diagnosing the P0694 code

Although a faulty cooling fan motor is most often to blame for a P0694 code, it is sometimes mistakenly replaced instead of diagnosing the real problem. Generic issues with electrical wiring may account for the code, as well as a false report from a faulty sensor. Technicians recommend inspecting the cooling fan relay for signs of fault; this component is notorious for being recalled by the manufacturer.

How serious is the P0694 code?

Although an advanced P0964 scenario may increase wear on your engine and limit air conditioner efficiency, it has no effect on the drivability of the vehicle itself. With this in mind, it should be seen as a mild issue. Any subsequent repairs should be seen as non-urgent.

What repairs can fix the P0694 code?

  • If any of the cooling fan-related components (motor, relay, resistor) have been identified as faulty, they should be repaired or replaced as is needed.

  • Any corroded, broken or shorted electrical circuitry should be fixed.

  • If there have been electrical issues, cooling fan-related fuses may be blown, and will have to be replaced as a result.

  • Following any repairs, the system should be checked again to see if the trouble code returns.

Additional comments for consideration regarding the P0694 code

Some vehicle models may require multiple drive cycles before the P0694 trouble code is logged. There is a very rare possibility that the P0694 trouble code may be caused by a faulty PCM. However, due to the high expense associated with repairing or replacing a PCM as well as the rarity of the issue, it should only be seen as a last-ditch possibility when all other conceivable scenarios have been exhausted.

Need help with a P0694 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
P0694
Check Engine Light

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0694 code.

SCHEDULE P0694 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

5,010

Rating Summary
4,615
191
48
28
128
4,615
191
48
28
128

Kenneth

19 years of experience
509 reviews
Kenneth
19 years of experience
Toyota Sequoia - Check Engine Light is on - Newport Beach, California
Kenneth did a great job and very knowledgeable. He has a great attitude and I will for sure be using him again.

Richard

11 years of experience
45 reviews
Richard
11 years of experience
Honda Civic - Check Engine Light is on - Tucson, Arizona
Had damage to wires leading to a coil and was unable to drive the car to a service center so I took a chance on having somebody come out to work on the car. It couldn't of worked out any better. Would definitely recommend Richard to anybody needing car service.

Clifton

29 years of experience
207 reviews
Clifton
29 years of experience
Dodge Ram 1500 - Check Engine Light is on - Lake Worth, Florida
Clifton was on time and very professional. I will definitely recommend him to my friends and family.

Walter

45 years of experience
85 reviews
Walter
45 years of experience
Nissan Sentra - Check Engine Light is on - Tulsa, Oklahoma
Very helpful and knowledgeable. Appreciate the friendliness on top of it, would definitely recommend.


More related articles

P0903 OBD-II Trouble Code: Clutch Actuator Circuit Malfunction
P0903 P0903 OBD-II Trouble Code: Clutch Actuator Circuit Malfunction Diagnostic Trouble Code (DTC): P0903 P0903 code definition P0903 is the OBD-II code for Clutch Actuator Circuit Malfunction. Other codes in the P0900 series may accompany this fault. What the P0903...
P2201 OBD-II Trouble Code: NOx Sensor Circuit Range/Performance Bank 1
P2201 code definition NOx Sensor Circuit Range/Performance Bank 1 Related Trouble Codes: P2200: NOx Sensor Circuit Bank 1 P2202: NOx Sensor...
P0227 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch C Circuit Low Input
P0227 P0227 code definition Throttle/Pedal Position Sensor/Switch C Circuit Low Input What the P0227 code means P0227 is a generic OBD-II code indicating that the throttle/pedal position sensor/switch C circuit has a low input problem causing the sensor input to...

Related questions

Does the VIN number have to be in the ECM for the vehicle to run?

Some new ECMs will give you a certain amount of free starts before it will not start unless the VIN is added. I am not sure if this is the case with your ECM but you have a dealer telling...

Car hesitates to start check engine light and VSA light comes on car has no power only gets up to 45 and crawls going uphill 2008 Honda Accord

Claimed by David Gaines Wooten

code p2015 and p2004

The codes are telling you the intake manifold runners are open. They are normally closed while driving and only need to be open when the engine is off. The intake manifold depends on them being closed for proper vacuum. This...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com