B19DE

B19DE - Left Sliding Door Handle Switch Circuit Low






For a complete wiring diagram, refer to.

• When Monitored: Whenever the Left Rear Door Module is awake.

• Set Condition: The Left Rear Door Module has detected the Left Door In/Out Handle Switch Sense circuit voltage is below 0.5 of a volt for over one second.






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.

• Attempt to operate the Left Power Sliding Door from the door handle.

• With the scan tool, read the DTCs.

Does the scan tool display this DTC as Active?

Yes

• Go to Test Step 2

No

• Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent occurrence.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - CHECK THE (Q55) LEFT DOOR IN/OUT HANDLE SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND

RT-B19DE-2 LH PSD HNDL STG





• Turn the ignition off.

• Disconnect the Left Rear Door Module C2 harness connector.

• Measure the resistance between ground and the (Q55) Left Door In/Out Handle Switch Sense.

• Be careful not to spread the terminals in the connector.

Is the resistance below 10,000 Ohms?

No

• Go to Test Step 3

Yes

• Repair the (Q55) Left Sliding Door Release Handle circuit for a short to ground.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 3 - CHECK THE (Q55) LEFT DOOR IN/OUT HANDLE SWITCH SENSE CIRCUIT FOR A SHORT TO THE (Q781) LEFT POWER SLIDING DOOR MUX RETURN CIRCUIT

RT-B19DE-3 LH HNDL SHT (Q781)





• Measure the resistance between the (Q55) Left Door In/Out Handle Switch Sense circuit and the (Q781) Left Power Sliding Door Mux Return circuit in the Door Module C2 connector.

• Be careful not to spread the terminals in the connector.

Is the resistance below 10,000 (10k) Ohms?

No

• Replace the Left Rear Door Module.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Yes

• Go to Test Step 4

Test Step 4 - CHECK THE LEFT REAR DOOR LATCH.

RT-B19DE-3 LH HNDL SHT (Q781)





• Disconnect the Left Rear Door Latch C2 connector.

• Measure the resistance between the (Q55) Left Door In/Out Handle Switch Sense circuit and the (Q781) Left Power Sliding Door Mux Return circuit in the Door Module C2 connector.

• Be careful not to spread the terminals in the connector.

Is the resistance below 10,000 (10k) Ohms?

No

• Replace the Left Rear Door Latch Assembly.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Yes

• Repair the (Q55) Left Door In/Out Handle Switch Sense circuit for a short to the (Q781) Left Power Sliding Door Mux Return circuit.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior