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2015 JEEP WRANGLER
3.6L V6•4WD•AUTOMATIC•gas
3 active safety recalls on this vehicle — view recalls
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Repairs179Labor511Torque3215Fluid10DTC1561Battery1Maintenance0Recalls3
P0727moderate severityPowertrain

Engine Speed Input Circuit No Signal

on 2015 Jeep Wrangler 3.6L V6 · 4WD

What this code means

The transmission controller sees no engine speed signal at all. Without RPM data the transmission cannot set shift points correctly.

Symptoms

  • No or delayed shifts
  • Torque converter won't lock
  • Check engine light on

Common causes

  • Open in engine speed circuit
  • Faulty engine speed sensor
  • Disconnected connector
  • Faulty PCM/TCM

Diagnostic steps

  1. Scan codes and freeze frame
  2. Check for RPM signal at TCM
  3. Test circuit continuity between PCM and TCM
  4. Repair open or replace sensor
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