1994 MAZDA MX-5 light

LIGHTING SYSTEM T HEADLIGHTS Circuit Diagram Gartner Banana

T LIGHTING SYSTEM Description The headlight system consists of two halogen headlights mounted on retractable mechanisms, a head- light switch in the combination switch, and a retractor switch between the center ventilation outlets. When the headlight switch is rotated to the second position, the headlights are activated and the retract- able headlight actuator lift the headlights. If only the retractor switch is turned ON, the headlights will raise to the upright position, but all lights will be off. An emergency manual retractor knob is located on top of each retractable headlight actuator. 45UOTX-080 Troubleshooting A retractor indicator light is included in the instrument cluster. The indicator light illuminates when the re- tractable headlight actuator is operating and should go out when the headlights are fully raised or retracted. if the indicator light remains on, small objects, such as pebbles or pieces of ice, may lodged between the headlight and the vehicle body. Use the following procedure to correct this. Turn the ignition switch to OFF. Obtain the code number and deactivate the audio antitheft function. (Refer to page T-120.) Disconnect the negative battery cable or remove the RETRACTOR 30A fuse in the main fuse block. Raise or lower the headlight by turning the emergency retractor knob. Remove the obstruction. After verifying that the headlight switch and the retractor switch are off, reconnect the negative battery cable. Verify operation of the retractable headlight and the retractor indicator light. 45UOTX-095 --- Symptom: Headlights do not illuminate. HEAD 30A MAIN FUSE BLOCK Step 1 1. Check HEAD 30A fuse in the main fuse block. 2. If the fuse is burned, replace it. Check and repair the wir- ing harness, if necessary. 3. If the fuse is OK, go to Step 2. Gartner Banana

LIGHTING SYSTEM T LAY Step 2 1. Turn the headlight switch ON. 2. Measure the voltage at the following terminal-wires of the headlight relay connector. B+: Battery positive voltage Other Action Go to Step 3 Check B terminal Go to Step 6 Check A terminal Check D terminal Repair wirring harness Repair wiring harness (HEAD 30A - Headliclht relav) I Step 3 1. Turn the headlight switch ON. 2. Measure the voltaae at the followinn terminal-wires of - the headlight switch connector. B+: Battery positive voltage Termlnal I Switch position I Voltage / Action I Check I terminal switch) Low beam G B+ Other - Go to Step 4 Replace combination switch High beam Step 4 1. Check the headlight bulbs. 2. If a bulb is burned, replace it. 3. If the bulbs are OK, go to Step 5. B+ Other Go to Step 4 Replace combination switch Gartner Banana

T LIGHTING SYSTEM Step 5 1. Disconnect the headlight connectors. 2. Turn the headlight switch on. 3. Measure the voltage at the following terminal wires. d B+: Battery positive voltage Switch position Low beam High beam Voltage B+ Other B+ Action Repair wiring harness (Retractable headlight - GND) Repair wiring harness (Combination switch - Retract- able headlight) Repair wiring harness (Retractable headlight - GND) 1. ?urn the headlight switch on. 2. Measure the voltage at the following terminal wires of the combination switch connector. B+: Battery positive voltage Other Terminal Repair wiring harness (Combination switch - Retract- able headlight) Voltage Action B+ Check D terminal Repair wiring harness (Retractable headlight relay - Com- bination switch) D B+ Other Repair wiring harness (Combination switch - GND) Replace combination switch Gartner Banana

LIGHTING SYSTEM T I Symptom: Headlight does not illuminate (Right or left). I Step 1 1. Check the headlight bulbs. 2. If a bulb is burned, replace it. 3. If the bulbs are OK, go to Step 2. Step 2 1. Disconnect the headlight connector of the faulty side. 2. Turn the headlight switch on. 3. Measure the voltage at the following terminal wires. B+: Battery positive voltage Other IB(FVW) Highbeam Action Repair wiring harness (Retractable headlight - GND) Repair wiring harness (Combination switch - Retract- able headlight) Repair wiring harness (Retractable headlight - GND) Repair wiring harness (Combination switch - Retract- able headlight) Gartner Banana

T LIGHTING SYSTEM I Symptom: Retractable headlight actuators do not operate (Both sides). I Activate the headlight switch and retractor switch and follow the approximate action. d Switch I Headlight switch ON / 'RECTOR Retractor rnotor(s) operate Retractor switch ON Step 1 1. Check RETRACTOR 30A and HEAD 30A fuses in the main fuse block. 2. If a fuse is burned, replace it. Check and repair the wire harness, if necessary. 3. If the fuses are OK, go to Step 2. Actlon Yes No Step 2 1. Disconnect the negative battery cable. 2. Retract the headlights fully by using the manual knobs. 3. Disconnect the retractable headlight actuator connec- tors. 4. Reconnect the negative battery cable. 5. Turn on the headlight switch and retractor switch. 6. Measure the voltage at the following terminal wires of the retractable headlight actuator connectors. Begin troubleshooting from Step 5 Next, turn ON retractor switch 45UOTX-087 Yes No B+: Batterv ~ositive voltage Begin troubleshooting from Step 4 Begin troubleshooting from Step 1 . . - Step 3 1. Disconnect the retractable headlight actuator connec- tors. 2. Check for continuity between the A terminal wire of the retractable headlight actuator connectors and ground. Retractable headlight actuator Left and Right I~ontinui~l headlight actuator Action Voltage (RN) Repair wiring harness (Retractable headlight actuator - GND) Left and Right Check retractable headlight actuator (Refer to oaon T-51) Action B+ Other Go to Step 3 Go to Step 4 Gartner Banana

LIGHTING SYSTEM T Step 4 1. Turn off the retractor switch. 2. Turn on the headlight switch. 3. Measure the voltage at the following terminal wires of the retractable headlight relay connector. B+: Battery positive voltage Terminal F Voltage B+ Repair wiring harness I Other / (Headlight relay - Retractable headlight relay) Action Check B terminal Other B+ Go to Step 5 Check D terminal Repair wiring harness IGIB+l (Retractor relay - Retractable headlight actuator) I 1 I Other I Replace retractable headlight relay 1 Step 5 Measure the voltage at the terminal wires of the retractor switch. B+ Other B+: Battery positive voltage Repair wiring harness (Retractable headlight relay - GND) Check G terminal 1 I I B+ I Check B and D terminal - - - Repair wiring harness 30A - Retractor I Termlanl Voltage Retractor switch B(W) Action Repair wiring harness (Retractor switch - Retractable OFF B+/ headlight actuator) 1 Other Replace retractor switch D (RN) ON B+ Other Repair wiring harness (Retractor switch - Retractable headlight actuator) Re~lafX retractor switch Gartner Banana

T LIGHTING SYSTEM d I Symptom: Retractable headlight actuator does not operate (One side). 45UOTX-092 Step 1 1. Disconnect the negative battery cable. 2. Retract the inoperative headlight fully by using the manual knob. 3. Disconnect the retractable headlight actuator connector on the faulty side. 4. Reconnect the negative battery cable. 5. Turn on the headlight switch and retractor switch. 6. Check the voltage at the C terminal wire of the retract- able headlight actuator connector. B+: Battery positive voltage Voltage I Action 1 B+ Other Go to Step 2 Repair wiring harness (Retractable headlight relay - Retractable headlight actuator) Step 2 Check for continuity between the A terminal wire of the faulty retractable headlight actuator connector and ground. Continuity No Yes Action Repair wiring harness (Retractable headlight actuator - GND) Check retractable headlight actuator (Refer to page T-51) Gartner Banana