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DTC Confirmation Procedure:
Confirm that battery voltage is between 11 and 14 V before performing the following procedures.
Turn ignition switch to LOCK.
Connect X-431 3G diagnostic tester (the latest software) to Data Link Connector (DLC), and make it
communicate with vehicle electronic module by the data network.
Turn ignition switch to ON.
Using X-431 3G diagnostic tester to record and clear the DTCs stored in the TCU.
Turn ignition switch to LOCK and wait for a few seconds.
Turn ignition switch to ON, and then select "Read Code".
If DTC is detected, the malfunction indicated by the DTC is current. Go to the diagnosis procedure - Step 1.
If DTC is not detected, the malfunction indicated by the DTC is intermittent. Please refer to Intermittent
DTC Troubleshooting.
Diagnosis Procedure
HINT:
After the fault is eliminated, verify DTC and symptom again.
a. Turn ignition switch to LOCK.
b. Disconnect the turbine speed sensor connector.
c. Check if the turbine speed sensor connector is dirty, oxidized, loose or damaged.
DTC Code
DTC Definition
DTC Detection
Condition
Warning Light
Condition
Possible Cause
P0715
Input/Turbine Speed
Sensor Circuit
Start engine and keep
it at following status for
at least 10 seconds:
idle speed or
accelerator not more
than 10%, at P or N
gear, engine speed not
less than idle speed
Turbine speed
signal is higher
than standard
value within a
period
Incorrect
installation of the
turbine speed
sensor
Signal circuit open
or short circuit
Turbine speed
sensor power
circuit poor contact
Turbine speed
sensor failure
TCU signal circuit
failure
P0716
Input/Turbine Speed
Sensor Circuit Range
Difference
between engine
speed and
turbine speed
exceeds
standard value
and keep for
900ms
1
Check wire harness connector
Repair fault
NG
OK