B198E
B198E - Left Power Sliding Door Sensor Supply Circuit Low
For a complete wiring diagram, refer to
• When Monitored: Whenever the left power sliding door motor/module is awake.
• Set Condition: The left power sliding door module has detected the left power sliding door motor sensor supply circuit voltage is below 1.0 volts.
Test Step 1 - Check For DTCs
• With the scan tool, record DTCs and any power sliding door inhibitors.
• Erase the DTCs.
• Turn the ignition OFF, wait 10 seconds, then turn the ignition ON.
• With the scan tool, read the power sliding door battery voltage Input.
• If the battery voltage Input is below 12 volts, check the fused B+ and ground circuits at the C382 or C383 body connector and repair as necessary before proceeding.
• Attempt to operate the left power sliding door.
• With the scan tool, check for DTCs.
Does the scan tool display B198E - Left Power Sliding Door Sensor Supply Circuit Low?
Yes
• Go to Test Step 2
No
• Using the wiring diagrams as a guide, inspect the wiring and connectors for an intermittent condition.
• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior
Test Step 2 - Check the Left Power Sliding Door
• Examine the left power sliding door for proper alignment, worn or binding rollers and hinges, loose/damaged weatherstrip, and track assembly for wear or anything that would cause an obstruction to proper operation.
• Manually open and close the power sliding door on a known good vehicle and notice the effort needed to open and close.
• Compare the effort needed to open and close the door on the disabled vehicle.
• Especially notice the effort needed to unlatch and close the left power sliding door.
Does it take more effort to operate the door than it should?
Yes
• Refer to service information for the related symptoms.
• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior
No
• Go to Test Step 3
Test Step 3 - Check the Left Power Sliding Door Track Harness
• At this time it will be necessary to remove the power sliding door drive unit assembly from the vehicle.
• Turn the ignition OFF.
• Remove the power sliding door drive unit assembly from the vehicle.
• Set the drive unit on the vehicle floor.
• Remove the power sliding door module from the track.
• Disconnect the power sliding door module connector.
• Connect the C383 left body 4 way harness connector.
• Turn the ignition ON.
• Using a 12 volt test lamp, connect one end to the fused B+ circuit and the other to the ground in the PSDM 6 way connector.
• The test lamp must illuminate brightly. Compare the brightness to that of a direct connection to the battery.
Does the test tight illuminate brightly?
No
• Repair or replace the track harness as necessary. If you have to order a new harness, be sure to specify if it is for the driver or passenger side of the vehicle.
• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior
Yes
• Go to Test Step 4
Test Step 4 - Check the Door Position Sensor Supply Circuit
• Connect the PSDM connector to the module.
• Connect a voltmeter between the door position sensor supply circuit and the door position sensor return circuit in the PSDM C2 (component side).
Is the voltage between 4.5 and 5.5 volts?
Yes
• Replace the power sliding door drive unit.
• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior
No
• Replace the power sliding door module.
• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior