Recliner Sensor Out Of Range Low
When Monitored: Ignition on.
Set Condition: This condition is immediately set when the seat motor potentiometer feeds a value lower than the Memory Heated Seat/Mirror Module has stored in EEPROM.
Possible Causes are:
- SEAT SENSOR 5 V SUPPLY SHORT TO GROUND
- RECLINER POSITION SENSOR (LOW)
- SEAT SENSOR 5-VOLT SUPPLY OPEN
- RECLINER POSITION SIGNAL CIRCUIT SHORT TO GROUND
- RECLINER POSITION SIGNAL CIRCUIT OPEN
- MEMORY SEAT MODULE INTERNAL 5-VOLT LOW
- MEMORY SEAT MODULE INTERNAL LOW
- Ensure the Memory Seat Module is fully connected before proceeding. Disconnect the Driver Power Seat Recliner Sensor connector. Turn ignition on. Measure the voltage of the seat sensor 5-volt supply circuit. Is the voltage more than 4.5 volts? If yes, go to next step. If no, go to step 6 .
- Turn ignition off. Disconnect the Driver Power Seat Recliner Sensor connector. Connect a jumper wire between seat sensor 5-volt supply and Recliner Position Signal circuits. Ensure the Memory Seat Module is fully connected before proceeding. Using the DRBIII(R), select: Body, Memory Seat Sensors. Turn ignition on. Read the Recliner Position Sensor voltage. Is the voltage more than 4.5 volts? If yes, replace the Seat Track Assy. Perform MEMORY SYSTEM VERIFICATION TEST under VERIFICATION TESTS. If no, go to next step.
- Turn ignition off. Disconnect the Seat Module C1 connector. Disconnect the Driver Power Seat Recliner Sensor connector. Measure the resistance of the Recliner Position Signal circuit to ground. Is the resistance less than 1000 ohms? If yes, repair the Recliner Position Signal circuit for a short to ground. Perform MEMORY SYSTEM VERIFICATION TEST under VERIFICATION TESTS. If no, go to next step.
- Turn ignition off. Disconnect the Seat Module C1 connector. Disconnect the Recliner Position Sensor connector. Measure the resistance of the Recliner Position Signal circuit between the Sensor connector and the Module connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the open Recliner Position Signal circuit. Perform MEMORY SYSTEM VERIFICATION TEST under VERIFICATION TESTS.
- If there are no possible causes remaining, replace the Memory Seat Module. Perform MEMORY SYSTEM VERIFICATION TEST under VERIFICATION TESTS.
- Turn ignition off. Disconnect the Seat Module C1 connector. Measure the resistance of the seat sensor 5-volt supply circuit to ground. Is the resistance less than 1000 ohms? If yes, repair the seat sensor 5-volt supply for a short to ground. Perform MEMORY SYSTEM VERIFICATION TEST under VERIFICATION TESTS. If no, go to next step.
- Disconnect the Recliner Position Sensor connector. Disconnect the Seat Module C1 connector. Turn ignition off. Measure the resistance of the seat sensor 5-volt supply circuit between the Sensor connector and the Module connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the open seat sensor 5-volt supply circuit. Perform MEMORY SYSTEM VERIFICATION TEST under VERIFICATION TESTS.
- If there are no possible causes remaining, replace the Memory Seat Module. Perform MEMORY SYSTEM VERIFICATION TEST under VERIFICATION TESTS.