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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1483 (Exterior Lighting System) >> Diagnosis And Testing >> Turn Signal and Hazard Lamps >> Pinpoint Tests >> Pinpoint Test O: One Turn Signal/Hazard Lamp Is Inoperative/Always On >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

When the Smart Junction Box (SJB) detects the multifunction switch is in the LH TURN position, the SJB provides voltage to the LH front turn lamp and LH rear turn lamp. When the SJB detects the multifunction switch is in the RH TURN position, the SJB provides voltage to the RH front turn lamp and the RH rear turn lamp.

DTC FAULT TRIGGER CONDITIONS TABLE

DTC Description Fault Trigger Conditions
  • B106E - Solid State Driver Disabled Due to Short Circuit
 A continuous DTC that sets when the SJB has temporarily shut down the output driver. The module has temporarily disabled a turn lamp output because an excessive current draw exists (such as a short to ground). The SJB cannot enable the turn lamp output until the cause of the short is corrected, the DTCs have been cleared and a successful self-test is run. 
  • B106F - Module Disabled Due to External Fault
 A continuous DTC that sets when the SJB has permanently shut down the output driver. The module has permanently disabled a turn lamp output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the SJB can withstand. The cause of the excessive current draw MUST be corrected before a new SJB is installed. 
  • B2048 - Left Rear Turn Lamp Circuit Short to Ground
 A continuous and on-demand DTC that sets when the SJB detects a short to ground from the LH rear turn lamp voltage supply circuit.
  • B2049 - Left Rear Turn Lamp Circuit Open
 An on-demand DTC that sets when the SJB detects an open from the LH rear turn lamp voltage supply circuit.
  • B2050 - Right Rear Turn Lamp Circuit Short to Ground
 A continuous and on-demand DTC that sets when the SJB detects a short to ground from the RH rear turn lamp voltage supply circuit.
  • B2051 - Right Rear Turn Lamp Circuit Open
 An on-demand DTC that sets when the SJB detects an open from the RH rear turn lamp voltage supply circuit.
  • B2A27 - Right Front Turn Lamp Circuit Open
 An on-demand DTC that sets when the SJB detects an open or short to voltage from the RH front turn lamp voltage supply circuit.
  • B2A28 - Right Front Turn Lamp Circuit Short to Ground
 A continuous and on-demand DTC that sets when the SJB detects a short to ground from the RH front turn lamp voltage supply circuit.
  • B2A29 - Left Front Turn Lamp Circuit Open
 An on-demand DTC that sets when the SJB detects an open or short to voltage from the LH front turn lamp voltage supply circuit.
  • B2A2A - Left Front Turn Lamp Circuit Short to Ground
 A continuous and on-demand DTC that sets when the SJB detects a short to ground from the LH front turn lamp voltage supply circuit.

This pinpoint test is intended to diagnose the following: 

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