⢠| Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
⢠| Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
⢠| Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Ignition | P0502, P0503 | P0502, P0503 | -- | -- |
Signal | P0502, P0503 | P0502, P0503 | P0502, P0503 | -- |
Ground | -- | P0502, P0503 | -- | -- |
The vehicle speed sensor (VSS) is mounted on the transaxle. As the transaxle turns the VSS, the VSS provides the speedometer with a vehicle speed input through voltage pulses. This input is used to drive the speedometer.
⢠| Ignition voltage is between 11 V and 18 V. |
⢠| Minimum throttle opening is greater than 15 %. |
⢠| Engine torque is between 54 N·m and 8192 N·m. |
⢠| Engine speed is between 1500 RPM and 6500 RPM. |
Transmission output speed sensor (TOSS) raw speed is less than 48 RPM.
DTC P0502 is a type B DTC.
DTC P0502 is a type B DTC.
⢠| Circuit Testing |
⢠| Wiring Repairs |
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
⢠| Automatic transmission terminal 2 |
⢠| Manual transmission terminal A |
ā | If greater than the specified range, test the ground circuit for an open/high resistance. |
⢠| Automatic transmission terminal 1 |
⢠| Manual transmission terminal C |
ā | If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. |
⢠| Automatic transmission terminal 3 |
⢠| Manual transmission terminal B |
ā | If not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal replace the appropriate control module. |
⢠| Automatic transmission TCM |
⢠| Manual transmission ECM |
Perform the Diagnostic Repair Verification after completing the repair.
Control Module References for ECM or TCM replacement, setup, and programming