DTC P0715 [FN4A-EL]


DTC P0715	Input/turbine speed sensor circuit malfunction
DETECTION CONDITION	• When all conditions below are satisfied and 0.8 s or more have passed. - D, S, or L range of TR switch input - Driving vehicle at vehicle speed of 41 km/h {25 mph} or more - Input/turbine speed sensor signal 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 AT warning light illuminates. • The DTC is stored in the PCM memory.
POSSIBLE CAUSE	• Input/turbine speed sensor malfunction • Short to ground in wiring harness between input/turbine speed sensor terminal A and PCM terminal 1V • Short to ground in wiring harness between input/turbine speed sensor terminal B and PCM terminal 1R • Open circuit in wiring harness between input/turbine speed sensor terminal A and PCM terminal 1V • Open circuit in wiring harness between input/turbine speed sensor terminal B and PCM terminal 1R • Damaged connectors between input/turbine speed sensor and PCM • PCM malfunction


STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		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.
2		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 frequencies of input/turbine speed sensor within specifications?	Yes	Go to the intermittent concern troubleshooting procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING [ZY].)
3		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.
4		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 the input/turbine speed sensor terminals (part-side). • Is the resistance within 250-600 ohms between input/turbine speed sensor terminals (part-side)? (See INPUT/TURBINE SPEED SENSOR INSPECTION [FN4A-EL].)	Yes	Go to the next step.
5		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 input/turbine speed sensor. • Is there iron powder stuck on 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.
6		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.
7		No	Repair or replace the connector and/or terminals, then go to Step 10.
8	INSPECT INPUT/TURBINE SPEED SENSOR CIRCUIT FOR OPEN CIRCUIT • Inspect the following input/turbine speed sensor terminals (wiring harness-side) and PCM terminals (wiring harness-side): - A and 1V - B and 1R • Is there continuity?	Yes	Go to the next step.
8		No	Repair or replace the wiring harness, then go to Step 10.
9	INSPECT INPUT/TURBINE SPEED SENSOR CIRCUIT FOR SHORT TO GROUND • Inspect input/turbine speed sensor terminal (wiring harness-side) 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.
9		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 a vehicle speed 41 km/h {25 mph} or more for 0.8 s or more. • Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [ZY].)
10		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.
11		No	DTC troubleshooting completed.