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TuningBot DTC Database · v4.37.14

P1186 Diagnostic Trouble Code (11 interpretations)

11 manufacturer-specific interpretations across 9 manufacturers in the TuningBot DTC database.

P · PowertrainEngineOBD2

Chrysler

1 interpretation
P1186
EOT Circuit Performance Chrysler · engine Data confidence 62%

The control module judged the EOT behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Chrysler.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Confirm the exact vehicle, ECU and software context
  • Inspect relevant wiring and connectors
  • Check applicable OEM service information

Dodge

1 interpretation
P1186
Intake manifold air control valve - circuit high Dodge · engine Data confidence 62%

The control module detected that the signal in the Intake manifold air control valve circuit stayed above the expected operating range. This is the manufacturer-specific definition used by Dodge.

Possible causes

  • Wiring
  • connectors
  • intake manifold air control valve
  • ECM

Ford

1 interpretation
P1186
Fuel Pump Temperature Sensor Low Ford · fuel Data confidence 80%

The control module detected a fault associated with the Fuel Pump Temperature Sensor Low circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.

Kia

1 interpretation
P1186
Fuel Pressure Too Low Kia · fuel Data confidence 62%

The control module detected that the Fuel Pressure value was below the expected limit. This is the manufacturer-specific definition used by Kia.

Land Rover

1 interpretation
P1186
Oxygen sensor heater 1 - cylinders 1, 2, 3, 4, 5, 6 Land Rover · emissions Data confidence 62%

The control module detected a fault associated with the Oxygen sensor heater 1 - cylinders 1, 2, 3, 4, 5, 6 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Land Rover.

Possible causes

  • Wiring
  • H025

Mercedes-Benz

1 interpretation
P1186
Fuel shut - off - recognised Mercedes-Benz · engine Data confidence 62%

The control module detected a fault associated with the Fuel shut - off - recognised circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mercedes-Benz.

Possible causes

  • Wiring
  • cruise control actuator
  • mechanical fault
  • ECM

MINI

1 interpretation
P1186
O2 Sensor Heater Control Circuit Bank 1 Sensor 2 MINI · emissions Data confidence 62%

The control module detected a fault associated with the O2 Sensor Heater Control Circuit Bank 1 Sensor 2 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by MINI.

PSA

2 interpretations
P1186
Richness adaptation fault : Initialised values incoherent PSA · engine Data confidence 72%

The control module detected the fault condition "Initialised values incoherent" for the Richness adaptation fault. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Bosch MED 17.4.x engine ECU (EP6 THP family)
P1186
Richness adaptation fault : Initialised values incoherent PSA · engine Data confidence 72%

The control module detected the fault condition "Initialised values incoherent" for the Richness adaptation fault. Documented for the Bosch MEV17.4 engine ECU (EP6 1.6 VTi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Bosch MEV17.4 engine ECU (EP6 1.6 VTi)

VAG

2 interpretations
P1186
Linear Oxygen Sensor Common Ground Short To Positive VAG · emissions Data confidence 62%

The control module detected a short circuit to battery voltage in the Linear Oxygen Sensor Common Ground circuit. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring open circuit
  • HO2S
Applies to Audi
P1186
Linear Oxygen Sensor Common Ground Short To Positive VAG · emissions Data confidence 80%

The control module detected a short circuit to battery voltage in the Linear Oxygen Sensor Common Ground circuit. This is the manufacturer-specific definition used by Volkswagen.

Applies to Volkswagen

Related and nearby codes

How to read P1186

P

Powertrain: engine, transmission and driveline systems.

1

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

186

Specific fault index within the subsystem.

Frequently asked questions about P1186

What does P1186 mean?

Diagnostic Trouble Code (11 interpretations). The control module judged the EOT behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Chrysler.

Is P1186 generic or manufacturer-specific?

P1186 is a manufacturer-specific code. In this database it is documented for: Chrysler, Dodge, Ford, Kia, Land Rover, Mercedes-Benz, MINI, PSA, VAG. The same number can mean something different on other brands.

Can TuningBot remove P1186 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningDyno-tested results by model and engine See the results →

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