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TuningBot DTC Database · v4.38.5

P1108 Dodge - Main relay - control circuit open

Manufacturer-specific interpretation for Dodge. All interpretations of P1108

P · PowertrainEngineOBD2

What P1108 means

P1108
Main relay - control circuit open Dodge · engine Data confidence 62%

The control module detected an interruption (open circuit) in the Main relay - control circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Dodge.

Possible causes

  • Wiring
  • connections
  • main relay
  • ECM

Related and nearby codes

How to read P1108

P

Powertrain: engine, transmission and driveline systems.

1

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

108

Specific fault index within the subsystem.

Frequently asked questions about P1108

What does P1108 mean?

Main relay - control circuit open. The control module detected an interruption (open circuit) in the Main relay - control circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Dodge.

Is P1108 generic or manufacturer-specific?

P1108 is a manufacturer-specific code. In this database it is documented for: Dodge. The same number can mean something different on other brands.

Can TuningBot remove P1108 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

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

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