Mazda MX-5 NA silhouetteMX-5 NA

LIGHTING SYSTEM

T-87prose procedure
Continued from T-86

Step 3

  1. 1
    Check the bulb of each lamp.
    Illustration of an automotive interior lamp bulb (festoon-type) shown isolated for the Step 3 bulb inspection.
    05U0TX-180
  2. 2
    If a bulb is burned, replace it.
  3. 3
    If the bulbs are OK, go to Step 4.

Step 4

  1. 1
    Set the control switches to ON position.
    Interior lamp connector test setup with voltmeter probes connected to terminal-wires (L/R) and (B) of the interior lamp connector. Shows connector pin layout with L/R and B terminals.
    05U0TX-181
  2. 2
    Measure the voltage at the following terminal-wires of each interior lamp connector.

Interior lamp connector — terminal-wire voltage check (Step 4)

(L/R)
Voltage12V
ActionNext check wire (B)
(L/R)
Voltage0V
ActionRepair wire (L/R) (ROOM 10A fuse—Interior lamp)
(B)
Voltage12V
ActionRepair wire (B) (Interior lamp—Body ground)
(B)
Voltage0V
ActionReplace interior lamp assembly

Step 5

  1. 1
    Open both doors, and set the control switches to DOOR position.
    Interior lamp connector voltage check with voltmeter probes on terminal-wire (R/W). Connector shows L/R and B terminal labels.
    05U0TX-182
  2. 2
    Measure the voltage at terminal-wire (R/W) of each interior lamp connector.

Interior lamp connector — (R/W) voltage check (Step 5)

(R/W)
Voltage12V
ActionGo to Step 6
(R/W)
Voltage0V
ActionReplace interior lamp assembly

Step 6

  1. 1
    Disconnect the door switch connector, and check continuity of each switch.
    Door switch component shown with hand operating it and voltmeter checking continuity, illustrating Step 6 disconnect/continuity test.
    05U0TX-183

Door switch continuity (Step 6)

Pushed
ContinuityNo
Released
ContinuityYes

Step 6 (continued)

  1. 2
    If not as specified, replace the door switch.
  2. 3
    If the switches are OK, repair wire (R/W). (Interior lamp-Door switch)

Step 7

  1. 1
    Set the control switches to ON position.
    Interior lamp connector voltage test with voltmeter probes on terminal-wire (B). Connector shows L/R and B terminal labels for Step 7.
    05U0TX-184
  2. 2
    Measure the voltage at terminal-wire (B) of the interior lamp connector.

Interior lamp connector — (B) voltage check (Step 7)

(B)
Voltage12V
ActionRepair wire (B) (Interior lamp—Body ground)
(B)
Voltage0V
ActionReplace interior lamp assembly
Support our work!

See also

Step 4 · Step 6

Search Manual

Search pages, specs, and procedures