B19F7

B19F7 - Left Rear Window Switch Circuit Low






For a complete wiring diagram, refer to.

• When Monitored: Continuously.

• Set Condition: The left rear window switch circuit is held below 0.5 volts for over one seconds.






Test Step 1 - Test for an Intermittent Condition

• Turn the ignition ON.

• With the scan tool, erase all DTCs.

• Operate the left rear window switch several times.

• Wait 30 seconds.

• With the scan tool, check for DTCs.

Does the scan tool display B19F7 - Left Rear Window Switch Circuit Low?

Yes

• Go to Test Step 2

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

Test Step 2 - Left Rear Window Switch






• Turn the ignition OFF.

• Disconnect the left rear window switch connector.

• Turn the ignition ON.

• Wait 30 seconds.

• With the scan tool, check for DTCs.

Does this DTC reset?

Yes

• Go to Test Step 3

No

• Replace the left rear window switch.

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

Test Step 3 - Q1 Left Rear Window Switch MUX Circuit Short to Ground






• Turn the ignition OFF.

• Disconnect the left rear door module C2 connector.

• Measure the resistance between ground and the left rear window switch MUX circuit.

Is the resistance more than 10k ohms?

Yes

• Replace the left rear door module.

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

No

• Repair the left rear window switch MUX circuit for a short to ground.

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