B16A5

B16A5 - Passenger Window Switch Backlighting Circuit High






For a complete wiring diagram, refer to.

• When Monitored: Whenever the power is turned off to the module and it goes from awake to sleep mode.

• Set Condition: When the Switch Illumination Driver circuit is above 2.5 volts for over 1350 ms. and the switch illumination output is turned off.






Test Step 1 - TEST FOR INTERMITTENT CONDITION

• Turn the ignition on.

• With the scan tool, record and erase the DTCs.

• Ensure the passenger window lock out switch is off.

• Turn the park lights on.

• Wait 30 seconds.

• With the scan tool, read the DTCs.

Does the scan tool display B16A5-PASSENGER WINDOW SWITCH BACKLIGHTING CIRCUIT HIGH?

Yes

• Go to Test Step 2

No

• Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.

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

Test Step 2 - WINDOW/DOOR LOCK SWITCH SHORTED







• With the scan tool, erase the DTCs.

• Turn the ignition off.

• Disconnect the Passenger Window/Door Lock Switch connector.

• Turn the ignition on.

• Ensure the park lights are on.

• Wait one minute.

• With the scan tool, read the active DTCs.

Does the scan tool display B16A5-PASSENGER WINDOW SWITCH BACKLIGHTING CIRCUIT HIGH?

No

• Replace the Window/Door Lock Switch.

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

Yes

• Go to Test Step 3

Test Step 3 - (E34) SWITCH ILLUMINATION DRIVER CIRCUIT SHORT TO VOLTAGE







• Turn the ignition off.

• Disconnect the Passenger Door Module C5 harness connector.

• Turn the ignition on.

• Measure the voltage between the (E34) Switch Illumination Driver circuit and Ground.

Is there any voltage present?

Yes

• Repair the (E34) Switch Illumination Driver circuit for a short to voltage.

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

No

• Replace the Passenger Door Module.

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