#
DTC P0715 [FN4A-EL]

BME050201030211

DTC P0715 | Input/turbine speed sensor circuit malfunction
--- | ---
DETECTION CONDITION | • If all conditions below satisfied and 0.7 s or more have passed, the PCM determines that there is a malfunction.

  - Signal from D, S or L range of TR switch is input.
  - Driving vehicle at a vehicle speed of 40 km/h {25 mph} or more.
  - Input/turbine speed sensor signal is not input.

Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction conditions during the first drive cycle.
• A PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• The HOLD indicator light flashes.
• The DTC is stored in the PCM memory.
POSSIBLE CAUSE | • Input/turbine speed sensor malfunction • Short to ground between input/turbine speed sensor terminal A and PCM terminal 3J • Short to ground between input/turbine speed sensor terminal B and PCM terminal 3G • Open circuit between input/turbine speed sensor terminal A and PCM terminal 3J
• Open circuit between input/turbine speed sensor terminal B and PCM terminal 3G
• Damaged connectors between input/turbine speed sensor and PCM
• PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the 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 Bulletins and or/on-line 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 | VERIFY CURRENT INPUT SIGNAL STATUS • Turn the ignition switch to the LOCK position. • Start the engine. • Measure the frequency of input/turbine speed sensor using a oscilloscope.

  - IG ON: 0 Hz
  - Idle: Within 320-374 Hz (P, N position)

• Are the frequency of input/turbine speed sensor within specifications?
Yes
Go to intermittent concern troubleshooting procedure.
(See INTERMITTENT CONCERN TROUBLESHOOTING [L3].)
No | Go to the next step.
4 | INSPECT INPUT/TURBINE SPEED SENSOR CONNECTOR FOR POOR CONNECTION • Turn the ignition switch to the LOCK position. • Disconnect the input/turbine speed sensor connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is the connection normal?
Yes
Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 10.
5 | INSPECT INPUT/TURBINE SPEED SENSOR RESISTANCE • Measure the resistance between input/turbine speed sensor (part-side) terminals. • Is the resistance within 250-600 ohms between the input/turbine speed sensor (part-side) terminals? (See INPUT/TURBINE SPEED SENSOR INSPECTION [FN4A-EL].) | Yes | Go to the next step.
No | Replace the input/turbine speed sensor, then go to Step 10. (See INPUT/TURBINE SPEED SENSOR REMOVAL/INSTALLATION [FN4A-EL].)
6 | INSPECT INPUT/TURBINE SPEED SENSOR • Remove the input/turbine speed sensor. • Is there any metal shavings stuck on the input/turbine speed sensor? (See INPUT/TURBINE SPEED SENSOR REMOVAL/INSTALLATION [FN4A-EL].) | Yes | Clean the input/turbine speed sensor, then go to Step 10.
No | Go to the next step.
7 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 10.
8 | INSPECT INPUT/TURBINE SPEED SENSOR CIRCUIT FOR OPEN • Inspect the following input/turbine speed sensor (wiring harness-side) terminals and PCM (wiring harness-side) terminals.

  - A and 3J
  - B and 3G

• Is there continuity?
Yes
Go to the next step.
No | Repair or replace the wiring harness, then go to Step 10.
9 | INSPECT INPUT/TURBINE SPEED SENSOR CIRCUIT FOR SHORT TO GROUND • Inspect the input/turbine speed sensor (wiring harness-side) terminal and body ground.

  - A and body ground
  - B and body ground

• Is there continuity?
Yes
Repair or replace the wiring harness, then go to the next step.
No | Go to the next step.
10 | VERIFY TROUBLESHOOTING OF DTC P0715 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the WDS or equivalent. • Drive the vehicle at a vehicle speed of 40 km/h {25 mph} or more for 0.7 s or more.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [L3].)
No | Go to the next step.
11 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FN4A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [FN4A-EL].)
No | DTC troubleshooting completed.