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DTC P0715 (DTC NO.14) INPUT/TURBINE SPEED SENSOR CIRCUIT MALFUNCTION
1. Input shaft speed sensor
DTC DETECTING CONDITION
• Input shaft speed sensor signal voltage too high or too low.
Step
1
Was "AUTOMATIC TRANSMISSION DIAGNOSTIC
FLOW TABLE" performed?
2
1) Turn ignition switch OFF and disconnect output shaft
speed sensor – input shaft speed sensor coupler.
2) Measure resistance between terminals of the discon-
nected sensor side coupler.
Is it 160–200 Ω?
(See figure.)
3
1) Connect output shaft speed sensor - input shaft
speed sensor coupler then disconnect TCM couplers.
2) Measure resistance between terminal "C43-7" and
"C43-15" of disconnected harness side coupler.
Is it 160–200 Ω?
4
1) Turn ignition switch OFF and connect input shaft
speed sensor coupler then disconnect TCM couplers.
2) Measure resistance between terminal "C43-7" (of dis-
connected harness side coupler) and body ground
then terminal "C43-15" (of disconnected harness side
coupler) and body ground.
Are they about 0 Ω?
(See figure.)
2. TCM coupler (viewed from harness side)
Action
AUTOMATIC TRANSMISSION (4 A/T) 7B-31
3. TCM
Yes
Go to Step 2.
Go to "AUTOMATIC
TRANSMISSION DIAG-
NOSTIC FLOW TABLE".
Go to Step 3.
Replace input shaft speed
sensor.
Go to Step 4.
"BLU/YEL" or "RED/WHT"
wire open or shorted each
other.
Short in
Poor connection of termi-
between "BLU/
nal "C43-7" or "C43-15" of
YEL" wire and
TCM.
ground or "RED/
If all the above are in
WHT" wire and
good condition, substitute
ground.
a known-good TCM and
recheck.
No
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