NO.4 HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK
[MZI-3.5]
DESCRIPTION AND POSSIBLE CAUSES
z
Open circuit in wiring harness
between main relay and PCM
terminal 1BO or 1BJ
z
Open circuit in wiring harness
between main relay terminal E
and PCM terminal 1BM
z
Main relay is stuck open.
z
Open or short circuit in wiring
harness between the DLC-2 and
PCM terminals 1BL or 1BG
z
Open or poor GND circuit (PCM
terminal 1D, 1J, 1BP, 1BK)
z
Poor connection of vehicle body
GND
No
No DTC is displayed:
Go to the next step.
18
Retrieve any KOEO DTCs using M-
MDS.
Are there DTCs displayed during
KOEO inspection?
Yes
DTC is displayed:
Go to appropriate DTC inspection.
(see
DTC TABLE [MZI-3.5]
.)
No
No DTC is displayed:
Go to the next step.
19
z
Verify test results.
{
If normal, return to diagnostic index to service any additional symptoms.
(See
ENGINE SYMPTOM TROUBLESHOOTING [MZI-3.5]
.)
{
If malfunction remains, inspect related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.
z
If vehicle is repaired, troubleshooting completed.
z
If vehicle is not repaired or additional diagnostic information is not
available, replace the PCM.
(see
PCM REMOVAL/INSTALLATION [MZI-3.5]
.)
4
HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK
DESCRIPTION
z
The starter cranks engine at normal speed but engine requires excessive
cranking time before starting.
z
The battery is in normal condition.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Symptom Troubleshooting (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:27:36 AM
Page 17
© 2005 Mitchell Repair Information Company, LLC.