Powertrain, generic · Vehicle speed, idle control and auxiliary inputs

P0513 Incorrect Immobilizer Key

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

The engine module receives a secret code from the immobiliser or body module (Chrysler SKIM/SKREEM/RF hub, Saab CIM); if it does not match the stored code, P0513 sets and starting is prevented – Saab cuts fuel and blocks the starter. The most common trigger is a replaced or reflashed engine module that was not taught to the immobiliser (FCA, Saab), less often handshake timing on FCA hybrids or a key not programmed. FCA lists it as invalid SKIM key. It is not emission-related; CARB does not require immobiliser monitoring, and no source documents a warning lamp.

Likely causes

Engine module replaced or reflashed and not taught to the immobiliser
Key or transponder not programmed or faulty
Immobiliser, body or RF hub module replaced or faulty
Software fault in the handshake

Symptoms

  • Engine does not start or stops after 1–2 s
  • Immobiliser or security lamp flashes
  • Starter does not crank (Saab)

Repair estimate

DifficultyHardWorkshop job
Parts and labour€80–600
Time0.5–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

immobilizer moduletransponder keyengine control module

Related codes

P0633P0512P0615

References: saabwisonline.com, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.