Diagnostic Procedure

PEDAL HALL INPUT SHORTED HIGH - MHSAPM/MSAPM - DIAGNOSTIC PROCEDURE

TEST	ACTION	APPLICABILITY
1	With the DRBIII®, erase the DTC from Memory Heated Seat Adjustable Pedal Module (MHSAPM). Operate the adjustable pedal's and memory system. Turn the ignition switch to the OFF position then start the engine and let run for one minute. Operate the adjustable pedal's to both stop limits. With the DRBIII®, check for the same DTC to reset in the MHSAPM. Did the same DTC reset? Yes: Go To 2 No: Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition. Perform ADJUSTABLE PEDALS VERIFICATION TEST VER-1 .	All
2	Turn ignition off. Disconnect the Adjustable Pedal Motor connector. Measure the resistance of the Adjustable Pedal Hall Sense Return circuit at the Adjustable Pedal Motor connector. Is the resistance below 5.0 ohms? Yes: Go To 3 No: Go To 7	All
3	Disconnect the Adjustable Pedal Motor connector. Turn ignition on. Measure the voltage between Adjustable Pedal Motor Hall Sense circuit and ground. Is the voltage above 5.5 volts? Yes: Repair the Adjustable Pedal Motor Hall Sense circuit for a short to battery. Perform ADJUSTABLE PEDALS VERIFICATION TEST VER-1 . No: Go To 4	All
4	Turn ignition off. Disconnect the Adjustable Pedal Motor Connector. Disconnect the MHSAPM C1 Connector. Turn ignition on. Measure the voltage between Adjustable Pedal Hall Signal circuit and ground. Is the voltage above 0.2 volts? Yes: Repair the Adjustable Pedal Hall Signal circuit for a short to voltage. Perform ADJUSTABLE PEDALS VERIFICATION TEST VER-1 . No: Go To 5	All
5	Turn ignition off. Disconnect the Adjustable Pedal Motor Connector. Ensure the MHSAPM is fully connected before proceeding. Turn ignition on. Measure the voltage of the Adjustable Pedal Hall Signal circuit at the MHSAPM C1 connector. Is the voltage above 0.2 volts? Yes: Go To 6 No: Replace the Adjustable Pedal Assembly in accordance with the Service Information. Perform ADJUSTABLE PEDALS VERIFICATION TEST VER-1 .	All
6	Ensure all connectors are connected and Adjustable Pedal Motor is operational. Measure the voltage of the Adjustable Pedal Hall Signal circuit while operating the Adjustable Pedal Motor to both stop limits. Did the voltage ever go above 7.0 volts only when the motor was in operation? Yes: Replace the Adjustable Pedal Assembly in accordance with the Service Information. Perform ADJUSTABLE PEDALS VERIFICATION TEST VER-1 . No: Replace the Memory Heated Seat Adjustable Pedal Module in accordance with the Service Information. Perform ADJUSTABLE PEDALS VERIFICATION TEST VER-1 .	All
7	Turn ignition off. Disconnect the MHSAPM C1 connector. Disconnect the Adjustable Pedal Motor connector. Measure the resistance of the Adjustable Pedal Hall Sense Return circuit between the Adjustable Pedal Motor connector and the MHSAPM C1 connector. Is the resistance below 5.0 ohms? Yes: Replace the Memory Heated Seat Adjustable Pedal Module in accordance with the Service Information. Perform ADJUSTABLE PEDALS VERIFICATION TEST VER-1 . No: Repair the Adjustable Pedal Hall Sense Return circuit for an open. Perform ADJUSTABLE PEDALS VERIFICATION TEST VER-1 .	All