B1D72

B1D72 - Seat Front Vertical Position Sensor Circuit High






For a complete wiring diagram, refer to.

• When Monitored: When the seat motor is activated.

• Set Condition: If during motor operation the sensor voltage is not within a specified range this code will set.






Test Step 1 - Test For Intermittent Condition

• Turn the ignition ON.

• With the scan tool, erase all DTCs.

• Move the driver seat switch in the vertical position three times.

• With the scan tool, read DTCs.

Does the scan tool display this DTC?

Yes

• Go to Test Step 2 => [ Test Step 2 - Driver
Vertical Seat Adjuster Motor ]

No

• The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.

• Perform Power Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Seat System Verification Test

Test Step 2 - Driver Vertical Seat Adjuster Motor

• Turn the ignition OFF.

• Disconnect the driver vertical seat adjuster motor harness connector.

• Turn the ignition ON.

• With the scan tool, erase all DTCs.

• Move the seat switch in the vertical positions three times.

• With the scan tool, read DTCs.

Does the scan tool display this DTC?

Yes

• Go to Test Step 3 => [ Test Step 3 - Driver
Seat Vertical Position Sense Circuit for a Short to Voltage ]

No

• Replace the driver vertical seat adjuster motor assembly.

• Perform Power Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Seat System Verification Test

Test Step 3 - Driver Seat Vertical Position Sense Circuit for a Short to Voltage

• Turn the ignition OFF.

• Disconnect the memory seat module C3 harness connector.

• Turn the ignition ON.

• Measure the voltage of the driver seat vertical position sense circuit.

Is there any voltage present?

Yes

• Repair the driver seat vertical position sense circuit for a short to voltage.

• Perform Power Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Seat System Verification Test

No

• Go to Test Step 4 => [ Test Step 4 - Driver Seat Vertical Position Sense Circuit for a Short
to Another Circuit ]

Test Step 4 - Driver Seat Vertical Position Sense Circuit for a Short to Another Circuit

• Turn the ignition OFF.

• Measure the driver seat vertical position sense circuit to other circuits in the memory seat module C3 connector.

Is there any continuity present?

Yes

• Repair the driver seat vertical position sense circuit for a short to another circuit.

• Perform Power Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Seat System Verification Test

No

• Go to Test Step 5 => [ Test Step 5 - Driver
Seat Vertical Position Sense Circuit Open ]

Test Step 5 - Driver Seat Vertical Position Sense Circuit Open

• Turn the ignition OFF.

• Measure the resistance of the driver seat vertical position sense circuit between the memory seat module C3 harness connector and the driver vertical seat adjuster motor harness connector.

Is the resistance below 10.0 ohms?

Yes

• Replace the memory seat module.

• Perform Power Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Seat System Verification Test

No

• Repair the driver seat vertical position sense circuit for an open.

• Perform Power Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Seat System Verification Test