Mazda 6 Service Manual: Troubleshooting
Mazda 6 Service Manual / Fuel and emission control systems / Troubleshooting
- Engine symptom troubleshooting
- Quick diagnostic chart
- No.1 melting of main or other fuses
- No.2 mil illuminates
- No.3 will not crank
- No.4 hard to start/long crank/erratic start/erratic crank
- No.5 engine stalls-after start/at idle
- No.6 cranks normally but will not start
- No.7 slow return to idle
- No.8 engine runs rough/rolling idle
- No.9 fast idle/runs on
- No.10 low idle/stalls during deceleration
- No.11 engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges
- No.12 lack/loss of power-acceleration/cruise
- No.13 knocking/pinging-acceleration/cruise
- No.14 poor fuel economy
- No.15 emission compliance
- No.16 high oil consumption/leakage
- No.17 cooling system concerns-overheating
- No.18 cooling system concerns-runs cold
- No.19 exhaust smoke
- No.20 fuel odor (in engine compartment)
- No.21 engine noise
- No.22 vibration concerns (engine)
- No.23 a/c does not work sufficiently
- No.24 a/c is always on or a/c compressor runs continuously
- No.25 a/c is not cut off under wide open throttle conditions
- No.26 exhaust sulphur smell
- No.27 constant voltage
- No.28 spark plug condition
- Intermittent concern troubleshooting
- Engine control system operation inspection
Dtc p2504
Diagnostic procedure
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Engine symptom troubleshooting
Confirm trouble symptom using the following diagnostic index, then go to
appropriate troubleshooting chart.
Diagnostic Index
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Mazda 6 Service Manual: Locking, Unlocking with Auxiliary Key
Turn the auxiliary key toward the front to lock, toward the back to unlock.
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All doors lock automatically when the driver's door is locked using the auxiliary
key.
To unlock
The driver’s door unlocks when the auxiliary key is turned briefly to the unlock
position and then immediatel ...
Mazda 6 Service Manual: Generator inspection
Generator Warning Light
1. Verify that the battery is fully charged.
Charge if necessary.
2. Verify that the drive belt deflection/tension is correct. (See DRIVE BELT
INSPECTION.)
If not as specified, replace the drive belt.
3. Turn the ignition switch to ON and verify that the gene ...
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