Mazda Mazda6 - Dtc P0758

ON-BOARD DIAGNOSTIC
K2–155
K2
End Of Sie
DTC P0758
A6E577018901220
5 VERIFY TROUBLESHOOTING OF DTC P0757
COMPLETED.
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from memory using WDS or
equivalent.
• Start engine.
• Warm up ATX.
• Drive vehicle in D range and make sure that
gears shift smoothly from 1GR to 5GR.
• Is same DTC present?
Yes Replace TCM, then go to next step.
(See K2–96 TCM REMOVAL/INSTALLATION.)
No Go to next step.
6 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See K2–124 AFTER REPAIR PROCEDURE.)
• Is there any DTC present?
Yes Go to applicable DTC inspection.
No Troubleshooting completed.
STEP INSPECTION ACTION
DTC P0758 Shift solenoid B circuit malfunction (open/short)
DETECTION
CONDITION
• Open or short in shift solenoid B signal system (while TCM monitors solenoid output voltage, the voltage
that differs from the ON/OFF signal output by CPU in TCM is detected).
Diagnostic support note:
• This is a continuous monitor (CCM).
• MIL illuminates if TCM detects the above malfunction conditions during first drive cycle.
• PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• AT warning light indication.
• DTC is stored in TCM memory.
POSSIBLE
CAUSE
• Open circuit between shift solenoid B terminal A and TCM terminal 2T
• Short to ground between shift solenoid B terminal A and TCM terminal 2T
• Short to power between shift solenoid B terminal A and TCM terminal 2T
• Shift solenoid B malfunction
• Damage connector between shift solenoid B and TCM
• TCM malfunction