Lighting Systems - Exterior - Electrical Diagnostics

• Diagnostic Code Index
• Lamps/Lighting - Exterior-Electrical/Diagnostics
  • DTC Troubleshooting
    • B162B-Left Low Beam Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B162C-LT Low Beam Control CKT Hi
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B162F-Right Low Beam Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1630-Right Low Beam Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1633-Left Hi Beam Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1634-Left Hi Beam Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1637-Right Hi Beam Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1638-Right Hi Beam Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B163B-Front Left Turn Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B163C-Front Left Turn Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B163F-Front Right Turn Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1640-Front Right Turn Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1643-Rear Left Turn Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1644-Rear Left Turn Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1644-Right Stop Lamp Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1647-Rear Right Turn Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1648-Rear Right Turn Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1663-Rear Fog Lamp Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1664-Rear Fog Lamp Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B166B-Left Trailer Tow Lamp Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B166C-Left Trailer Tow Lamp Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B166F-Right Trailer Tow Lamp Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B1670-Right Trailer Tow Lamp Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B16B1-Left Stop Lamp Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B16F8-Front Left Fog Lamp Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B16F9-Front Left Fog Lamp Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B16FC-Front Right Fog Lamp Control Circuit Low
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B16FD-Front Right Fog Lamp Control Circuit High
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B17B8-Left Stop Lamp Control Circuit OVERCURRENT
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B17B9-Right Stop Lamp Control Circuit OVERCURRENT
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B17BA-Headlamp Leveling Motor Control Circuit OVERCURRENT
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B17BF-Left SIDEMARKER Lamp Control Circuit OVERCURRENT
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test
    • B17C4-Right SIDEMARKER Lamp Control Circuit OVERCURRENT
      • Additional Wiring
      • Monitor Conditions
      • Set Conditions
      • Possible Causes
      • Diagnostic Test