021283

Moderate

021283 — Remote Engine Start Not Working

Description

What the Code Means

021283 is stored in the DME fault memory and means the Secure Token check in the Secure Feature Activation system is still running, or the DME holds an unverified Secure Token. Secure Feature Activation is the mechanism the DME uses to confirm the legitimacy of paid options tied to the control unit: Remote Engine Start (01CR), M Driver's Package (07ME), M Drive Professional (01MB).

Until the token check finishes or the token is confirmed, the DME won't activate the corresponding functions. The fault is rare and sporadic, often accompanied by code 021280 (DME: Certificates (type 1) not ready).

Affected vehicles have the S68T engine and the XB1T drive unit.

Symptoms

Symptoms

  • For option 01CR Remote Engine Start: the Remote Engine Start selection is missing from the Pre-conditioning submenu.
  • Remote Engine Start can be selected with the vehicle key, but the engine doesn't start.
  • Check Control message 2055 appears: Remote engine start not available.
  • For option 07ME M Driver's Package: the increased top speed isn't reached.
  • For option 01MB M Drive Professional: M MODE TRACK is unavailable; only M MODES ROAD and SPORT work.

Causes and fixes

Diagnostics and Repair

  1. Read the fault codes with a BMW diagnostic tool (ISTA/INPA) and clear the stored codes.
  2. After clearing, start the engine, let it run for a few minutes or drive a short distance, then recheck the memory — the codes shouldn't return.
  3. Check the fuses and relays: a fuse may not be blown but can be loose; the contact points between the fuse and holder can corrode or fail to make good contact. Blown relays cause faults in major electrical systems, such as air conditioning.
  4. Check the battery's condition and voltage: at low voltage the body control module works incorrectly, which causes a range of electrical problems. On models with two batteries, a discharged one starves the whole electrical system of power.
  5. If the Battery Safety Terminal (BST) has triggered, replace the terminal sensor, then reset the airbag warning on the instrument panel with a diagnostic tool.
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