Dtc P0720 - Mazda Mazda6 Workshop Manual Supplement

STEP
10 INSPECT INPUT/TURBINE SPEED SENSOR
CONNECTOR FOR POOR CONNECTION
• Disassemble the transaxle.
• Disconnect input/turbine speed sensor
connector.
• Check for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Are terminals okay?
11 INSPECT INPUT/TURBINE SPEED SENSOR
RESISTANCE
• Measure resistance between input/turbine
speed sensor.
• Is resistance within 513—627 ohms between
input/turbine speed sensor connector terminal
A and B (part side)?
12 VERIFY TROUBLESHOOTING OF DTC P0715
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from memory using WDS or
equivalent.
• Drive vehicle with vehicle speed 40 km/h {25
mph} or above and engine speed 1,500 rpm
or above for 2 second or more
• Repeat Step ii two times.
• Is same DTC present?
13 VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
(See K2–124 AFTER REPAIR
• Is there any DTC present?
End Of Sie

DTC P0720

DTC P0720 Vehicle speedometer sensor (VSS) malfunction (open/short)
• Parking gear rotation detected by VSS is 150 rpm (Vehicle speed: 5—6 km/h) or less while intermediate
sensor signal is 1,400 rpm or greater in D range for 2 second or more.
Diagnostic support note:
• This is a continuous monitor (CCM).
DETECTION
• MIL illuminates if TCM detects the above malfunction conditions in two consecutive drive cycles.
CONDITION
• PENDING CODE is available.
• FREEZE FRAME DATA is available.
• AT warning light indication.
• DTC is stored in TCM memory.
• Open circuit between vehicle speedometer sensor terminal B and TCM terminal 1M
• Open circuit between vehicle speedometer sensor terminal A and TCM terminal 1V
• Short to ground between vehicle speedometer sensor terminal B and TCM terminal 1M
POSSIBLE
• Short to ground between vehicle speedometer sensor terminal A and TCM terminal 1V
CAUSE
• Vehicle speedometer sensor malfunction
• Damaged connectors between vehicle speedometer sensor to TCM
• TCM malfunction
ON-BOARD DIAGNOSTIC
INSPECTION
PROCEDURE.)
Yes Go to next step.
No Repair terminals, then go to Step 12.
Yes Repair or replace coupler component, then go to next step.
No Replace input/turbine speed sensor, then go to next step.
Yes Replace TCM, then go to next step.
(See K2–96 TCM REMOVAL/INSTALLATION.)
No Go to next step.
Yes Go to applicable DTC inspection.
No Troubleshooting completed.
ACTION
A6E577018901211
K2–139
K2