DTC P0717 L61
Circuit Description
The input speed sensor (ISS) provides transaxle input speed to the PCM. The
ISS is a permanent magnet (PM) generator. The sensor mounts into the transaxle case
and maintains a slight air gap between the sensor and the drive sprocket. The PM generator
produces an AC voltage as the drive sprocket rotor teeth pass through the sensor's
magnetic field. The AC voltage level increases as the turbine shaft speed increases.
The PCM converts the AC voltage into a digital signal. The PCM determines actual turbine
speed using the digital signal. The PCM uses the input speed to calculate torque converter
slip speed and gear ratios.
Conditions for Setting the DTC
DTC P0717 will set if the PCM detects that input shaft speed (transmission ISS)
is less than 100 rpm for 5 seconds when the following conditions have been met:
| • | Vehicle speed is greater than 8 km/h (5 mph) |
| • | TFP switches indicate vehicle is not in Park or Neutral |
| • | No OSS or P1810 DTCs have been set |
Diagnostic Aids
| • | If the engine is running and the vehicle is moving above 12 km/h (7 mph),
the input speed must be non-zero. |
| • | Inspect the wiring at the PCM, the transmission connector and the A/T
connector for the following conditions: |
| - | A broken wire inside the insulation |
When diagnosing for an intermittent short or open condition, massage the wiring
harness while watching the test equipment for a change.
DTC P0717
DTC P0717 L81
Circuit Description
The input speed sensor (ISS) provides transaxle input speed to the TCM. The
ISS is a permanent magnet (PM) generator. The sensor mounts into the transaxle case
and maintains a slight air gap between the sensor and the drive sprocket. The PM generator
produces an AC voltage as the drive sprocket rotor teeth pass through the sensor's
magnetic field. The AC voltage level increases as the turbine shaft speed increases.
The TCM converts the AC voltage into a digital signal. The TCM determines actual turbine
speed using the digital signal. The TCM uses the input speed to calculate torque converter
slip speed and gear ratios.
Conditions for Setting the DTC
DTC P0717 will set if the TCM detects that input shaft speed (transmission ISS)
is less than 100 rpm for 5 seconds when the following conditions have been met:
| • | Vehicle speed is greater than 8 km/h (5 mph) |
| • | TFP switches indicate vehicle is not in Park or Neutral |
| • | No OSS or P1810 DTCs have been set |
Diagnostic Aids
| • | If the engine is running and the vehicle is moving above 12 km/h (7 mph),
the input speed must be non-zero. |
| • | Inspect the wiring at the TCM, the transmission connector and the A/T
connector for the following conditions: |
| - | A broken wire inside the insulation |
When diagnosing for an intermittent short or open condition, massage the wiring
harness while watching the test equipment for a change.
DTC P0717
