1994 MAZDA MX-5 relay

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Page 223 of 1708

MAZDA MX-5 1994  Workshop Manual F TROUBLESHOOTING GUIDE DESCRIPTION I Blower fan operates but cool air not expelled ITROUBLESHOOTING HINTS] Open or short circuit in wiring harness NC relay malfunction 34 Air conditioning sensor malf

Page 228 of 1708

MAZDA MX-5 1994  Workshop Manual ON-BOARD DIAGNOSIS SYSTEM PREPARATION SST 1 SELECT SW A STEM SELECT 1 * SYSTEM SEUC . TEST SW - SYSTEM SELECT i # SELF TEST DIAGNOSTIC TROUBLE CODE NUMBER Inspection procedure 1. Connect the SSTs to t

Page 233 of 1708

MAZDA MX-5 1994  Workshop Manual F ON-BOARD DIAGNOSIS SYSTEM CODE No. I 03 (SGT SIGNAL) iTEP I INSPECTION ACTION - Yes - No  I Are there any poor connections in crankshaft posi- tion sensor circuit? Repair or replace connector I Go

Page 234 of 1708

MAZDA MX-5 1994  Workshop Manual ON-BOARD DIAGNOSIS SYSTEM F Circuit Diagram TO IGNITION SWITCH TO BATTERY MAIN RELAY :AF*, CRANKSHAFT POSITION SENSOR  Gartner Banana

Page 240 of 1708

MAZDA MX-5 1994  Workshop Manual ON-BOARD DIAGNOSIS SYSTEM CODE No. 25 (PRC SOLENOID VALVE) I Condition Ignition switch ON ACTION Repair connector and/or wiring harness Go to next step Go to next step STEP 1 2 Check for open or short

Page 241 of 1708

MAZDA MX-5 1994  Workshop Manual F ON-BOARD DIAGNOSIS SYSTEM CODE NO. I 28 (EGR SOLENOID VALVE(VACUUM)) I I iTEP I INSPECTION ACTION (vacuum) circuit? valve (vacuum) connector disconnected OK? - Yes Repair or replace connector I Go t

Page 242 of 1708

MAZDA MX-5 1994  Workshop Manual ON-BOARD DIAGNOSIS SYSTEM INSPECTION Are there any poor connections in idle air control valve circuit? CODE NO. Is resistance of idle air control valve OK? 34 (IDLE AIR CONTROL VALVE) 1 Resistance: 11

Page 247 of 1708

MAZDA MX-5 1994  Workshop Manual INTAKE AIR SYSTEM INTAKE AIR SYSTEM COMPONENTS Removal 1 Inspection l Installation Warning Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and
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