Mazda 3 - Page 236

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
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236
1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
• Has FREEZE FRAME DATA been
recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
2
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
• Verify related service repair
information availability.
• Is any related repair information
available?
Yes
Perform repair or diagnosis according to the
available repair information.
• If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT BATTERY
• Turn the ignition switch off.
• Inspect the battery.
(See BATTERY INSPECTION.)
• Is the battery normal?
Yes
Go to the next step.
No
Replace the battery, then go to Step 7.
(See BATTERY REMOVAL/INSTALLATION [Z6].)
4
INSPECT POOR INSTALLATION OF
GENERATOR TERMINAL
• Turn the ignition switch off.
• Inspect the generator terminal B
installation nut for looseness.
• Is the nut loose?
Yes
Tighten the generator terminal B installation nut,
then go to Step 7.
No
Go to the next step.
5
INSPECT POOR INSTALLATION OF
BATTERY POSITIVE TERMINAL
• Inspect the battery positive terminal for
looseness.
• Is the terminal loose?
Yes
Connect the battery positive terminal correctly,
then go to Step 7.
No
Go to the next step.
6
INSPECT BATTERY CHARGING
CIRCUIT
• Disconnect the generator terminal B.
• Measure the voltage between
generator terminal B (wiring harness-
side) and body GND.
• Is the voltage B+?
Yes
Go to the next step.
No
Repair or replace wiring harness between
generator terminal B and battery positive terminal,
then go to the next step.
7
VERIFY TROUBLESHOOTING OF
DTC P2502 COMPLETED
• Make sure to reconnect all connectors.
• Clear DTC from memory using the
WDS or equivalent.
• Start the engine.
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [Z6].)
No
Go to the next step.