P0695 Cooling Fan 3 Control Circuit Low

P0695 points to a low condition in the cooling fan 3 control circuit. The third fan or fan-speed control path is below the expected range.

Code details

Generic OBD-II · P0

System: Computer
Code type: Generic (SAE / ISO controlled)
Standard: SAE J2012 / ISO 15031-6

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not overlook fan-speed resistor or module faults on vehicles that label speed stages as fan circuits.

Symptoms of P0695

Check-engine light, sometimes with several unrelated codes at once.
Warning lights, a no-start, or intermittent electrical faults.
Communication or module-reset problems on a scan tool.

Common causes of P0695

Low battery voltage, poor grounds, corroded connectors, or blown fuses.
Wiring or network (CAN bus) faults between modules.
A module software/programming issue, or rarely a failed controller.

Useful checks before replacing parts

Check fan 3 command, relay or module output, control voltage, current draw, coolant temperature, A/C pressure data, and freeze-frame operating conditions.
Inspect fan 3 fuse feed, relay socket, ground path, motor or resistor circuit, connector heat damage, and harness continuity to the control module.
Command the fan or speed stage where supported and verify the electrical response matches actual fan operation.

Related OBD-II codes

These nearby computer entries can help compare wording and pin down the fault area.