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DESCRIPTION Speed signals are input into the tire pressure warning ECU from the combination meter. At the same time, the DTC C2191/91 is stored only during the signal check. DTC DETECTION CONDITION TABLE WIRING DIAGRAM Fig. 28: Vehicle Speed Signal Malfunction - Wiring Diagram INSPECTION PROCEDURE DTC Code Detection Condition Trouble Area C2174/74 Vehicle speed signal malfunction Combination meter Vehicle speed signal circuit Harness or connector Tire pressure warning ECU Tire pressure warning valve and transmitter C2191/91 Test mode procedure is performed Meter/gauge system (speed signal) Vehicle speed signal circuit Harness or connector Tire pressure warning ECU NOTE: When replacing the tire pressure warning ECU, read the transmitter IDs It is necessary to perform INITIALIZATION after REGISTRATION of the
2009 Toyota Tundra 2009 SUSPENSION Tire & Wheel - Tundra
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