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2011 LINCOLN MKT
3.5L V6 EcoBoost•AWD•AUTOMATIC•gas•turbo
1 active safety recall on this vehicle — view recalls
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Repairs0Labor490Torque1490Fluid9DTC1884Battery1Maintenance0Recalls1
P1605moderate severityPowertrain

PCM Keep Alive Memory Test Failure

on 2011 Lincoln MKT 3.5L V6 EcoBoost · AWD

What this code means

The PCM Keep Alive Memory self-test has failed. The PCM cannot properly store or retrieve adaptive learning values from its KAM.

Symptoms

  • Check Engine Light
  • PCM defaults to base calibration
  • Rough idle initially
  • Harsh transmission shifts

Common causes

  • KAM circuit voltage issue
  • Faulty KAM fuse or relay
  • PCM internal failure
  • Battery cable issue

Diagnostic steps

  1. Check KAM fuse and relay
  2. Test KAM circuit voltage at PCM connector
  3. Check battery and alternator
  4. Clear code and retest — if recurring, suspect PCM failure

Repair notes

Check KAM circuit power supply. Replace fuse if blown. If KAM circuit is OK, PCM may need replacement.

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