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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Other materials:
Mazda 6 Service Manual: Power brake unit removal/installation
1. Remove the master cylinder. (See MASTER CYLINDER REMOVAL/INSTALLATION.)
2. Remove the wiper arm. (See WINDSHIELD WIPER ARM AND BLADE
REMOVAL/INSTALLATION.)
3. Remove the cowl grille. (See COWL GRILLE REMOVAL/INSTALLATION.)
4. Remove the wiper motor. (See WINDSHIELD WIPER MOTOR REMOVAL/INSTAL ...
Mazda 6 Service Manual: Pcm removal/installation
Note
For replace the PCM, Setup the WDS and perform the PCM
configuration. (See PCM CONFIGURATION.)
1. Disconnect the negative battery cable.
2. For R.H.D, perform the following procedures.
(1) Remove the front side trim (left-side).
(2) Partially peel back the flower covering.
3 ...
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