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TuningBot DTC Database · v4.37.15

P1660 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1660

P · PowertrainClimate_controlOBD2

What P1660 means

P1660
Engine coolant blower motor, speed 1 - short to ground VAG · climate_control Data confidence 62%

The control module detected a short circuit to ground in the Engine coolant blower motor, speed 1 circuit. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring short to ground
  • engine coolant blower motor
Applies to Audi
P1660
Coolant Fan Control 1: Short to Ground VAG · engine Data confidence 80%

The control module detected a short circuit to ground in the Coolant Fan Control 1 circuit. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18068. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

Malfunction Indicator Light (MIL) ON

Possible causes

  • Fuse(s) faulty
  • Wiring and/or Connector(s) from/to Coolant Fan Control Module (J293) faulty
  • Coolant Fan Control Module faulty
  • Engine Control Module Power Supply Relay (J271) faulty

Recommended checks

  • Check Fuse(s)
  • Check Wiring and/or Connector(s) from/to Coolant Fan Control Module (J293)
  • Check Coolant Fan Control
  • Check/Replace Coolant Fan Control Module (J293)
  • Check Engine Control Module Power Supply Relay (J271)
Applies to Volkswagen

Related and nearby codes

P16 range
P1600P1601P1602P1603P1604P1605P1606P1607P1608P1609P160AP160CP160DP160EP160FP1610P1611P1612

How to read P1660

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

660

Specific fault index within the subsystem.

Frequently asked questions about P1660

What does P1660 mean?

Diagnostic Trouble Code (2 interpretations). The control module detected a short circuit to ground in the Engine coolant blower motor, speed 1 circuit. This is the manufacturer-specific definition used by Audi.

Is P1660 generic or manufacturer-specific?

P1660 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.

Can TuningBot remove P1660 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

Stage 1/2/3 TuningDPF RemovalEGR RemovalAdBlue / SCR RemovalDTC RemovalIMMO OFFSpeed Limiter (Vmax)

Understand the system behind this code: Diagnostic Strategy and DTC Logic

ECU tuningStage 1 dyno results for VAG engines See the results →

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