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2005 VOLVO S80
2.9L I6•FWD•AUTOMATIC•gas•B6294S
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor501Torque3156Fluid7DTC1718Battery1Maintenance0Recalls6
P0889high severityPowertrain

TCM Power Relay Sense Circuit Range/Performance

on 2005 Volvo S80 2.9L I6 · FWD

What this code means

The transmission control module detects that the power relay sense signal is out of the normal expected range. The voltage reading doesn't match commanded relay state.

Symptoms

  • Transmission warning light on
  • Intermittent shifting issues
  • Possible limp mode

Common causes

  • Failing TCM power relay
  • Loose or corroded connections
  • Intermittent wiring fault
  • Faulty transmission control module

Diagnostic steps

  1. Scan for related transmission codes
  2. Inspect relay and connectors
  3. Monitor sense circuit while cycling relay
  4. Check wiring for intermittent faults
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