FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Monitor DTC Status





P0891 TCM Power Relay Circuit High

Scantool Diagnostics

Monitor Scantool Data

1. Connect scantool to data link connector (DLC)
2. Ignition "ON" & Engine "OFF".
3. Monitor the "A/T CON. RELAY VOLT" parameter on the scantool

Specification:Approx. B+








Fig 1) Ignition "ON "A/T RELAY"
Fig 2) Idle "A/T RELAY"
4. Is A/T RELAY VOLT within specifications?