Mazda CX-7 2007 Workshop Manual page 301

SYMPTOM TROUBLESHOOTING [L3 WITH TC]
01-03 SYMPTOM TROUBLESHOOTING [L3 WITH TC]
SYMPTOM TROUBLESHOOTING WIRING
DIAGRAM[L3 WITH TC] . . . . . . . . . . . . 01-03-2
FOREWORD[L3 WITH TC] . . . . . . . . . . . 01-03-4
ENGINE SYMPTOM
TROUBLESHOOTING
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-5
CONTROL SYSTEM DEVICE AND
CONTROL RELATIONSHIP CHART
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-6
QUICK DIAGNOSTIC CHART
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-8
NO.1 MELTING OF MAIN OR OTHER
FUSES[L3 WITH TC] . . . . . . . . . . . . . . 01-03-15
NO.2 MIL ILLUMINATES
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-16
NO.3 WILL NOT CRANK
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-17
NO.4 HARD TO START/LONG
CRANK/ERRATIC START/ERRATIC
CRANK[L3 WITH TC]. . . . . . . . . . . . . . 01-03-20
NO.5 ENGINE STALLS-AFTER
START/AT IDLE[L3 WITH TC] . . . . . . . 01-03-23
NO.6 CRANKS NORMALLY BUT WILL
NOT START[L3 WITH TC] . . . . . . . . . . 01-03-28
NO.7 SLOW RETURN TO IDLE
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-32
NO.8 ENGINE RUNS ROUGH/ROLLING
IDLE[L3 WITH TC] . . . . . . . . . . . . . . . . 01-03-34
NO.9 FAST IDLE/RUNS ON
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-37
NO.10 LOW IDLE/STALLS DURING
DECELERATION[L3 WITH TC] . . . . . . 01-03-39
NO.11 ENGINE STALLS/QUITS,
ENGINE RUNS ROUGH, MISSES,
BUCK/JERK, HESITATION/STUMBLE,
SURGES[L3 WITH TC] . . . . . . . . . . . . . 01-03-41
NO.12 LACK/LOSS OF POWER
(ACCELERATION/CRUISE)
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-46
NO.13 KNOCKING/PINGING
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-50
NO.14 POOR FUEL ECONOMY
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-53
NO.15 EMISSION COMPLIANCE
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-56
NO.16 HIGH OIL
CONSUMPTION/LEAKAGE
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-59
NO.17 COOLING SYSTEM
CONCERNS-OVERHEATING
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-60
NO.18 COOLING SYSTEM
CONCERNS-RUNS COLD
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-61
NO.19 EXCESSIVE BLACK SMOKE
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-03-62
NO.20 FUEL ODOR (IN ENGINE
COMPARTMENT)[L3 WITH TC] . . . . . . 01-03-65
End of Toc
NO.21 ENGINE NOISE
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03-66
NO.22 VIBRATION CONCERNS (ENGINE)
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03-67
NO.23 A/C DOES NOT WORK
SUFFICIENTLY[L3 WITH TC] . . . . . . . . 01-03-68
NO.24 A/C IS ALWAYS ON OR A/C
COMPRESSOR RUNS CONTINUOUSLY
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03-69
NO.25 A/C IS NOT CUT OFF UNDER
WIDE OPEN THROTTLE CONDITIONS
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03-70
NO.26 EXHAUST SULPHUR SMELL
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03-70
NO.27 FUEL REFILL CONCERNS
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03-71
NO.28 FUEL FILLING SHUT
OFF ISSUES[L3 WITH TC] . . . . . . . . . . 01-03-72
NO.29 SPARK PLUG CONDITION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03-73
INTERMITTENT CONCERN
TROUBLESHOOTING
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03-76
Vibration Method . . . . . . . . . . . . . . . . . . 01-03-76
Water Sprinkling Method . . . . . . . . . . . . 01-03-77
ENGINE CONTROL SYSTEM
OPERATION INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-03-78
Input Signal System
Investigation Procedure . . . . . . . . . . . 01-03-78
Main Relay Operation Inspection . . . . . 01-03-81
Intake Manifold
Vacuum Inspection. . . . . . . . . . . . . . . 01-03-82
Electronic Throttle Control
System Inspection . . . . . . . . . . . . . . . 01-03-82
Variable Swirl System
Operation Inspection . . . . . . . . . . . . . 01-03-83
Fuel Injector
Operation Inspection . . . . . . . . . . . . . . 01-03-84
Fuel Cut Control
System Inspection. . . . . . . . . . . . . . . . 01-03-85
Fuel Pump Operation Inspection. . . . . . 01-03-85
Fuel Pump Control
System Inspection. . . . . . . . . . . . . . . . 01-03-86
Fuel Pump Speed
Control Inspection . . . . . . . . . . . . . . . 01-03-86
Spark Test . . . . . . . . . . . . . . . . . . . . . . . 01-03-87
EGR Control
System Inspection. . . . . . . . . . . . . . . . 01-03-87
Purge Control System Inspection . . . . . 01-03-88
A/C Cut-off Control
System Inspection . . . . . . . . . . . . . . . 01-03-89
Cooling Fan Control
System Inspection. . . . . . . . . . . . . . . . 01-03-89
Wastegate Control System
Operation Inspection . . . . . . . . . . . . . . 01-03-90
Variable Valve Timing Control
System Operation Inspection . . . . . . . 01-03-90
Evaporative Emission (EVAP)
System Leak Inspection . . . . . . . . . . . 01-03-91
01-03
01-03-1