Mazda Mazda6 - Dtc P0756

ON-BOARD DIAGNOSTIC
K2–153
K2
End Of Sie
DTC P0756
A6E577018901218
Diagnostic procedure
11 INSPECT TERMINAL COMPONENT NO.1 (12-
PIN) CIRCUIT FOR SHORT TO POWER
• Turn ignition key to ON (engine OFF).
• Check voltage at terminal component No.1 (12-
pin) terminal I (harness-side).
• Is voltage 0 V?
Yes Go to next step.
No Repair or replace harness, then go to Step 13.
12 INSPECT TCM CIRCUIT FOR SHORT TO
GROUND
• Turn ignition key to OFF.
• Check continuity between TCM terminal 2W
(harness-side) and body ground.
• Is there any continuity?
Yes Repair or replace harness, then go to next step.
No Go to next step.
13 VERIFY TROUBLESHOOTING OF DTC P0753
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from memory using WDS or
equivalent.
• 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.
14 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 P0756 Shift solenoid B malfunction (stuck off)
DETECTION
CONDITION
• Difference between actual gear ratio and gear ratio set in TCM is large.
Diagnostic support note:
• This is a continuous monitor (CCM).
• MIL illuminates if TCM detects the above malfunction condition.
• PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• AT warning light does not indication.
• DTC is stored in TCM memory.
POSSIBLE
CAUSE
• Shift solenoid B malfunction.
• Shift valve B stuck
• TCM malfunction
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has FREEZE FRAME PID DATA been
recorded?
Yes Go to next step.
No Record FREEZE FRAME PID DATA on repair order, then
go to next step.
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
Yes Perform repair or diagnosis according to available repair
information.
• If vehicle is not repaired, go to next step.
No Go to next step.
3 CHECK FOR DTC
• Turn ignition key to ON (engine OFF).
• Inspect DTC.
• Is DTC outputted?
Yes Follow applicable DTC inspection procedure.
No Go to next step.