P0695Generic code

P0695 Code: Fan 3 Control Circuit Low

The P0695 code means the control circuit of cooling fan 3 shows low voltage, which points to a short to ground or a loss of supply. It can cause weak cooling in demanding conditions. Check the fuse, relay, connector and wiring before replacing any part.

Severity
Medium
Can I keep driving?
Yes, but with caution
Estimated cost
$30 to $500
Difficulty
Medium
System
Computer and Outputs
Applies to
All OBD2 vehicles

Updated Reviewed by Renzo Chacca

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What the P0695 code means

Some vehicles use a third fan circuit for maximum speed or for an additional fan.

The computer watches the control circuit from its own driver transistor. The P0695 code tells you the voltage in that circuit is low, which means a short to ground or a loss of supply. Before you replace any part, check the fuse, the relay, the connector and the wiring, because those are the most common causes.

If it fails, cooling may not be enough in demanding conditions such as extreme heat or towing.

To confirm the fault, unplug the fan with the key on and watch what happens to the reading or the code. If the value jumps to the opposite extreme, the wiring is fine and the fan is the part pulling the signal to ground. If nothing changes, look for the short in the wire itself, starting where the harness rubs against the engine, the chassis or the exhaust.

P0695 code symptoms

  • Check engine light or another warning light on.
  • Not enough cooling in demanding conditions.
  • High temperature in demanding conditions.

Likely causes of the P0695 code

  1. Control wire shorted to ground. The fan may stay on all the time, or the computer cuts the command to protect itself.
  2. Interrupted supply: a blown fuse, a faulty relay or a cut wire.
  3. Shorted fan motor or relay. The resistance is far lower than specified.
  4. Connector with moisture, which creates a path to ground.

How to diagnose the P0695 code step by step

  1. Command the fan with the scan tool and check whether it responds.
  2. Check the fuse and the relay. Measure voltage on both sides of the fuse, and swap the relay with an identical one.
  3. Measure the supply at the connector. You should see battery voltage with the key on or when the fan is commanded.
  4. Measure the fan resistance and compare it with the manual. Also check the insulation to ground.
  5. Check the control wire for continuity all the way to the computer and for any short circuits.

How to fix the P0695 code

  • Repair the connector, the wiring or the power supply.
  • Replace cooling fan 3 if it does not respond when it has correct power and a correct control signal.
  • Clear the P0695 code and verify the repair with a test drive and a check that the fan turns on.

Technical reference data

  • Typical current draw: 10 to 30 amps.
  • Reference values only: check the manufacturer data for your vehicle.

Brand-specific notes

The source describes this code as uncommon, but it does show up on some GM and Chrysler vehicles. The same fuse, relay, connector and wiring checks apply.

P0695 on GM

Uncommon, but it appears on some GM vehicles. Check the fuse, relay and connector before replacing the fan.

P0695 on Chrysler

Uncommon, but it appears on some Chrysler vehicles. Follow the same checks of the supply, the control wire and the fan itself.

Frequently asked questions about P0695

What does the P0695 code mean?
It means the control circuit of cooling fan 3 has low voltage. The cause is a short to ground or a loss of supply.
Can I drive with a P0695 code?
Only with caution. The engine can run hotter than it should, especially in slow traffic or hot weather, so watch the temperature gauge and get it checked soon.
What does cooling fan 3 do?
Some vehicles use a third fan circuit for maximum speed or for an additional fan.
Do I always have to replace the part?
No. Check the fuses, relays, connectors and wiring first, because they cause most of these codes and cost very little to fix.
How much does it cost to fix P0695?
As a rough guide, between $30 and $500, depending on whether it is a fuse, a relay, a wiring repair or a new fan.

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Questions about the P0695 code

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