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SE-40 < DTC/CIRCUIT DIAGNOSIS > VEHICLE SPEED SIGNAL CIRCUIT VEHICLE SPEED SIGNAL CIRCUIT Description INFOID:0000000005518191 Transmits vehicle speed signal to rear seatback power return control unit. Component Function Check INFOID:0000000005518192 1. CHECK FUNCTION Check that the rear seatback rises when pressing and holding the power return switch. Is the inspection result normal? YES >> Vehicle speed signal circuit is OK. NO >> Refer to Diagnosis Procedure INFOID:0000000005518193 1. CHECK VEHICLE SPEED OPERATION 1. Check speed meter operate normally. Is the inspection result normal? YES >> GO TO 2. NO >> Refer to 2. CHECK VEHICLE SPEED INPUT SIGNAL Check voltage between rear seatback power return control unit harness connector and ground. Is the inspection result normal? YES >> GO TO 3. NO >> Refer to 3. CHECK VEHICLE SPEED SIGNAL CIRCUIT 1. Disconnect rear seatback power return control unit connector and combination meter connector. 2. Check continuity between power return control unit harness connector and combination meter harness 3. Check continuity between rear seatback power return control unit harness connector and ground. (+) (–) Condition Voltage (V) (Approx.) Rear seatback power return control unit Connector Terminal B493 24 Ground When vehicle speed is ap- NOTE: SKIA6649J Rear seatback power return control unit Combination meter Continuity Connector Terminal Connector Terminal B493 24 M34 31 Existed Rear seatback power return control unit Ground Continuity Connector Terminal B493 24 Not existed |