NO.4 HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK
[LF]
POSSIBLE CAUSE & DESCRIPTION (HARD TO START/LONG CRANK/ERRATIC
START/ERRATIC CRANK [LF])
DLC and PCM
terminals 1AM or
1AI
Open or poor GND
circuit (PCM
terminal 1AZ, 1BH,
1BD, 1BB)
Poor connection of
vehicle body GND
No
No DTC is displayed:
Inspect the following:
START circuit in
ignition switch
Open circuit in
wiring harness
between ignition
switch and starter
Starter interlock
switch (MT)
15
Verify test results.
If normal, return to diagnostic index to service any additional
symptoms.
(See
ENGINE SYMPTOM TROUBLESHOOTING [LF]
.)
If malfunction remains, inspect related Service Bulletins and/or
On-line Repair Information and perform repair or diagnosis.
If vehicle is repaired, troubleshooting completed.
If vehicle is not repaired or additional diagnostic
information is not available, replace the PCM.
(See
PCM REMOVAL/INSTALLATION [LF]
.)
4
HARD TO START/LONG CRANK/ERRATIC
START/ERRATIC CRANK
DESCRIPTION
The starter cranks engine at normal speed but
engine requires excessive cranking time
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:09 PM
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