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2013 SUBARU TRIBECA
3.6L H6•AWD•AUTOMATIC•gas
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor478Torque3345Fluid10DTC1861Battery1Maintenance0Recalls6
P0738moderate severityPowertrain

TCM Engine Speed Output Circuit Low

on 2013 Subaru Tribeca 3.6L H6 · AWD

What this code means

The engine speed output circuit from the transmission control module reads low. A low signal on this circuit can disrupt speed-based control functions.

Symptoms

  • Shifting irregularities
  • Check engine light on
  • Speed signal complaints

Common causes

  • Short to ground in circuit
  • Corroded connector
  • Wiring damage
  • Faulty TCM

Diagnostic steps

  1. Retrieve codes and freeze frame
  2. Inspect circuit for short to ground
  3. Measure output circuit voltage
  4. Repair wiring or replace TCM
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Other Powertrain codes on this vehicle

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