Circuit/System Verification

Ignition ON.
Verify the reading lamps and sunshade mirror lamps operate ON and OFF while activating each lamp with there respective switch ON and OFF.
- If the reading lamps and sunshade mirror lamps do not operate ON/OFF when activated
  Refer to Courtesy Lamps Malfunction .
- Go to next step: If the reading lamps and sunshade mirror lamps operate ON/OFF when activated
Verify the scan tool Door Ajar Sw. parameter changes between Active and Inactive while opening and closing each vehicle door.
- If the parameter does not change
  Refer to Door Ajar Indicator Malfunction .
- Go to next step: If the parameter changes
Verify the scan tool Interior/Courtesy Lighting Master Switch parameter changes between Door and On while placing the dome lamp switch in the Door and On positions.
- If the parameter does not change
  Refer to Circuit/System Testing - Dome Lamp Switch Malfunction.
- Go to next step: If the parameter changes
Verify all dome/courtesy lamps controlled by the dome/courtesy lamps control circuits at terminal 1 X7 and terminal 5 X2 turn ON and OFF while commanding the Courtesy Lamps ON and OFF with a scan tool.
- If the dome/courtesy lamps do not turn ON and OFF
  Refer to Circuit/System Testing - Dome/Courtesy Lamps Malfunction.
- Go to next step: If the dome/courtesy lamps turn ON and OFF
All OK.