instrument cluster MAZDA MX-5 1994 Owner's Manual

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

CRUISE CONTROL SYSTEM Step 8 - lnspection of actuator 1. Measure the cruise actuator solenoid resistance by us- ing an ohmmeter. Check terminals C-A 2. If not as soecified. redace the actuator. Resistance C-B C-D 3. If continuiiv is OK: ad to Ster, 84. Approx. 25 to 55R 4. ~isconne4 the actiator cabie from the accelerator ped- al. 5. Run the engine at idle speed. 6. Apply battery positive voltage to the following terminals, and check actuator operation. B+: Batterv aositive voltaae I Order 1 2 7. If not as specified, replace the actuator. Terminal condition AlBlClD 3 4 Step 9 - lnspection of vehicle speed sensor 1. Remove the instrument cluster. 2. Check for continuity between terminals 2D and 2F while rotating the speedometer cable. 3. If there are not four pulses per shaft rotation, replace the vehicle speed sensor. (Refer to page T-32.) 4. If there are four pulses per rotation, check the wiring har- ness. (instrument cluster - control unit). 5. If the wiring is OK, replace the cruise control unit. Operation of control cable GND GND GND - GND - - B+ B+ B+ - GND GND Pull Hold - - Extend Release Gartner Banana

T CRUISE CONTROL SYSTEM CRUISE CONTROL UNIT u CRUISE CONTROL MAIN SWITCH lnspection 1. Check for continuity between terminals of the cruise con- trol main switch. I I I I I I Neutral I Position Terminal A 'IBIDIFIGIH M : Continuity OFF ON 2. If not as specified, replace the cruise control main switch. CRUISE CONTROL SWITCH lnspection 1. Remove the knee protector and disconnect the com- bination switch connector. 2. Check for continuity between terminals of the combina- tion switch connector. u 0 0 Switch 3. If not as specified, replace the cruise control switch. SETICOAST RESUMVACCEL VEHICLE SPEED SENSOR lnspection 1. Remove the instrument cluster. 2. Check for continuity between terminals 2D and 2F while rotating the speedometer cable. 3. If there are not four pulses per shaft rotation, replace the vehicle speed sensor. (Refer to page T-32.) d n V Terminal 0 0 SE I RE M: Continuity 0 E 0 0 0 Gartner Banana

AUDIO Component 4LC (AUTO LEV- Terminal A: Speaker left F : Speaker right B: Speaker left H: Speaker right C: N.C. I : N.C. D: N.C. J : N.C. Connector BID A : Headrest speaker left H: Headrest speaker right B : Headrest speaker left I : System mute C: ACC J : ALC (INSTRUMENT D: Illurni (IN) CLUSTER) F : Headrest speaker right A: Bodysonic right C: Bodysonic left B: Bodysonic right D: Bodysonic left AICW FI H 1 : Input right 5 : Input left 2 : +13.2V Control Power 6: GND 3 : Input left E : Shield earth 4 : lnput right I J Gartner Banana

SRS AIR BAG SYSTEM T COMPONENT DESCRIPTION Component Air bag module Function Air bag system warning light Deploys air bag when current flows to integrated igniter Light illuminates or flashes if malfunction occurs in air bag system I EE with S-sensor, completes Circuit Clock spring I Ensures uninterrupted electrical connec- tion to air bag module while allowing turning of steering wheel Activated(closed) when crash impact de- Crash sensor Diagnostic module to infktor Activated(closed) when crash impact de- S-sensor 1 Monitors com~onents and harnesses in tected Acting with D-sensor, completes circuit to inflator Remark Located in instrument cluster Location: Driver side . . . . . . . . in steering wheel hub Passenger side . . . above the glove compartment Part of combination switch Located in front part of vehicle(left, right, and center) Located behind heater unit in passenger compartment Contains back-up battery air bag system Indicates system malfunction by flashing or illuminating air bag system warning light If warning light is bunt, sounds warning buzzer Detects short circuit between air bag module and ground or crash sensor rnal- function and melts system fuse to pre- vent unintended air bag deployment Gartner Banana

T SRS AIR BAG SYSTEM I Flowchart No1 I Symptom I Air bag warning light remains ON I Possible cause Poor connection of diagnostic module connector Defective diagnostic module 0 Defective wiring harness CONNECTOR Step 1 Carry out "Before Servicing" procedure under GENER- AL PROCEDURES, page T-160. Step 2 1. Verify that the diagnostic module connector is securely connected to the diagnostic module. 2. Verify that the shorting bar is in the fully retracted posi- tion. 3. If the connector and shorting bar are OK, go to step 3. Step 3 1. Disconnect the diagnostic module connector. 2. Remove the shorting bar from the diagnostic module connector. 3. Check the air bag system warning light. I Llght condltlon 1 Action I I I Illuminate I Repair wiring harness (Instrument cluster - Diagnostic module) I Not illuminate Replace diagnostic module (Refer to page T-208) Gartner Banana

Possible cause u 0 Burnt air bag warning light bulb Defective diagnostic module Defective wiring harness Step 1 Carry out "Before Servicing" procedure under GEN- ERAL PROCEDURES, page T-1 60. Air bag system warning light does not illuminate for 6 seconds Flowchart No.1 Step 2 1. Disconnect the diagnostic module connector. 2. Turn the ignition switch to ON. 3. Check the air bag warning light. I Llght condition I Action 1 Symptom 1 Illuminate I Replace diagnostic module (Refer to ~aae T-208) 1 -- I Not illuminate I GO to step 3 J Step 3 1. Remove the instrument cluster. 2. Check the air bag system warning light bulb. I Repair wiring harness (Diagnostic module--Instrument cluster) I Bulb Burnt Action Replace bulb .- Gartner Banana