DTC P0716 or P0717
DTC P0716 or P0717 |
Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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DTC Descriptors |
DTC P0716
Input Speed Sensor Performance
DTC P0717
Input Speed Sensor Circuit No Signal
Diagnostic Fault Information |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
Input Speed Sensor Supply Voltage | P0717 | P0717 | - | P0716 |
Input Speed Sensor Signal | P0716, P0717 | P0716, P0717 | P0716, P0717 | P0716 |
Typical Scan Tool Data |
Transmission ISS
Circuit | Short to Ground | Open/High Resistance | Short to Voltage |
Operating conditions: Engine running, normal operating temperature, transmission in PARK Parameter Normal Range: 500-5,800 RPM | |||
ISS/OSS Supply Voltage | 0 RPM | 0 RPM | 0 RPM |
ISS Signal | 0 RPM | 0 RPM | 0 RPM |
ISS/OSS Supply Voltage
Circuit | Short to Ground | Open/High Resistance | Short to Voltage |
Operating conditions: Engine running, normal operating temperature Parameter Normal Range: OK | |||
Input Speed Sensor Supply Voltage | Out of Range | OK | Out of Range |
Circuit/System Description |
The input speed sensor (ISS) is a hall-effect type sensor. The ISS mounts to the inside of the automatic transmission case assembly and connects to the control solenoid valve assembly through a 2-wire harness and connector. The sensor faces the reluctor ring, which is attached to the 4-5-6 clutch and the 3-5-R clutch housing. The sensor receives 8.3-9.3 volt via the ISS-supply circuit from the transmission control module (TCM). When the 4-5-6 clutch and the 3-5-R clutch housing rotates the sensor emits a signal frequency based on the reluctor ring's teeth. This signal is transmitted through the ISS signal circuit to the TCM. The TCM uses the ISS signal to determine line pressure, transmission shift patterns, torque converter clutch (TCC) slip speed, and gear ratio.
Conditions for Running the DTC |
P0716
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DTC P0101, P0102, P0103, P0121, P0122, P0123, P0716, P0717, P0752, P0973, or P0974 is not set.
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The engine speed is 400 RPM or greater for 5 seconds.
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The ignition voltage is 8.6 volts or greater.
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The engine torque signal is valid.
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The throttle position signal is valid.
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The vehicle speed is 10 km/h (6 mph) or greater.
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P0717
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DTC P0101, P0102, P0103, P0717, P0722, or P0723 is not set.
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The engine speed is 400 RPM or greater for 5 seconds.
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The ignition voltage is 8.6 volts or greater.
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The vehicle speed is 16 km/h (10 mph) or greater.
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The engine torque is 50 Nm (37 lb ft) or higher.
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The engine torque signal is valid.
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Conditions for Setting the DTC |
P0716
The transmission input speed drops 1,350 RPM for 1.0 second and does not recover.P0717
The transmission input shaft speed is less than 50 RPM for 5.0 seconds.Action Taken When the DTC Sets |
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DTCs P0716 and P0717 are Type A DTCs.
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The TCM freezes transmission adaptive functions.
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The TCM commands the high side driver OFF.
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The TCM commands TCC OFF.
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The TCM commands maximum line pressure.
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The TCM disables neutral idle.
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The TCM inhibits Tap Up/Down function.
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The TCM inhibits manual shifting of forward gears.
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The TCM limits the transmission to Reverse and 5th gear operation.
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Conditions for Clearing the DTC |
DTCs P0716 and P0717 are Type A DTCs.
Diagnostic Aids |
Damage or misalignment of the 4-5-6 clutch and 3-5-R clutch housing reluctor machined teeth surface may cause a speed sensor malfunction.
Reference Information |
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
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Component Connector End Views
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Inline Harness Connector End Views
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Description and Operation
Electronic Component Description for input speed sensor (ISS)
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification |
1. |
Ignition ON, verify with a scan tool the transmission ISS/OSS Supply Voltage test status parameter displays OK.
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2. |
Engine idling in Park, observe the scan tool Transmission ISS parameter while varying the engine speed. The Transmission ISS parameter should change with the engine speed and not drop out.
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3. |
After you complete the steps described above, check the diagnostic trouble code is not reset by driving the vehicle according to the conditions for running diagnostic trouble codes (DTC). You can also drive the vehicle according to the conditions you see in Freeze Frame/ Failure records. If the vehicle passes the circuit/system verification procedure, then stop. Do not perform the circuit/system test or component test as this may result in unnecessary part replacement. Refer to
Testing for Intermittent Conditions and Poor Connections
.
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Circuit/System Testing |
1. |
Ignition OFF, remove the control valve body cover. Refer to Control Valve Body Cover Replacement . |
2. |
Connect the vehicle wire harness X1 20-way transmission electrical connector to the Q8 control solenoid valve assembly electrical connector.
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3. |
Disconnect the B14C ISS wiring harness connector X3 from the Q8 control solenoid valve assembly.
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4. |
Ignition ON, test for 8.3-9.3 volts between the ISS voltage circuit terminal A X3, on the Q8 control solenoid valve assembly, and ground at the transmission case.
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5. |
If not within the specified range, replace the Q8 control solenoid valve assembly. Refer to
Control Solenoid Valve and Transmission Control Module Assembly Replacement
.
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6. |
Perform the
Control Solenoid Valve and Transmission Control Module Assembly Input Shaft Speed/Output Shaft Speed Input Test
.
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7. |
Inspect the reluctor for damage or misalignment. Repair or replace as necessary.
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8. |
If all of the above test normal, replace the B14C input speed sensor.
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Repair Instructions |
Note | ||
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Perform the
Resetting of the transmission's adaption
after all transmission repairs.
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Before replacing the TCM, perform the
Control Solenoid Valve and Transmission Control Module Assembly Inspection
.
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Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for control solenoid valve assembly replacement, setup, and programming