B2846

B2846 - Driver Blind Spot Warning Light Control Circuit Low

For a complete wiring diagram, refer to.

• When Monitored: Continuously.

• Set Condition: When the driver blind spot indicator circuit senses that the voltage is below 4.0 volts for over 155 ms., this code will set.






Test Step 1 - Test for an Intermittent Condition

• Turn the ignition ON.

• With the scan tool, erase all DTCs.

• Cycle the ignition from on to off three times.

• Turn the ignition on.

• With the scan tool, read active DTCs.

Does the scan tool display this DTC as Active?

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 relate splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension. Repair as necessary.

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

Test Step 2 - Inspect Mirror Connections

• Turn the ignition off.

• Disconnect the driver door module C1 harness connector.

• Inspect the wiring and connectors between the mirror and the drivers door module.

Were there any problems found?

Yes

• Repair as necessary.

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

No

• Go to Test Step 3

Test Step 3 - Mirror Assembly

• Turn the ignition on.

• With the scan tool, erase the DTCs.

• Cycle the ignition from on to off three times.

• Turn the ignition on.

• Ensure the DDM C1 connector is still disconnected.

• With the scan tool, read active DTCs.

Does the scan tool display this DTC as Active?

Yes

• Replace the outside rearview mirror assembly..

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

No

• Replace the driver door module.

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