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Home >> Toyota >> 2004 >> MR2 C56 >> Repair and Diagnosis >> Transmission >> Manual Trans >> Manual Trans Sequential - Diagnostics >> DTC P0725: Engine Speed Input Circuit >> Inspection Procedure

Inspection Procedure

NOTE: Read freeze frame data using hand-held tester or OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, etc. at the time of the malfunction.
  1. Are there any other codes besides DTC 0725 being output? 
    1. YES: Check and repair engine system. 
    2. NG: Go to next step 
  2. Check for open and short in harness and connector between transmission control ECU and ECM ( PROCEDURE  ). 
    1. NG: Repair or replace harness and connector. 
    2. OK: Replace transmission control ECU. 
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