DTC Advanced Diagnostics: P07B9, P07BA
DTC P07B9 : Parking Actuator Valve Stroke Sensor B Circuit Low DTC P07BA : Parking Actuator Valve Stroke Sensor B Circuit High
General Description
The transmission control module (TCM) judges the parking position by the output voltage from the parking actuator valve stroke sensor. The TCM monitors the parking actuator valve stroke sensor output voltage, and when the output voltage is a specified value for a specified duration, the TCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 0.5 second or more |
| DTC Type | One drive cycle, MIL off, shift position indicator blinks |
Enable Conditions
| Condition | Minimum | Maximum | |
|---|---|---|---|
| 12 volt battery voltage [Battery Voltage] | 10 V | - | |
| IG1 terminal voltage | 10 V | - | |
| Vehicle | ON mode | ||
| Other | No abnormality in sensor supply (VCC2) | ||
[ ]: HDS Parameter
Malfunction Threshold
DTC: P07B9
The parking actuator valve stroke sensor B output voltage is less than 0.1 V for at least 0.5 second.
DTC: P07BA
The parking actuator valve stroke sensor B output voltage is more than 4.91 V for at least 0.5 second.
Possible Cause
- Solenoid wire harness failure
- Valve body assembly failure (parking actuator valve stroke sensor)
- TCM internal circuit failure
Confirmation Procedure
Operating Condition
Turn the vehicle to the ON mode, and wait for at least 5 seconds.
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the shift position indicator blinks and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the TCM memory. The MIL does not come on.
Conditions for clearing the DTC
The shift position indicator comes off by turning the vehicle to the OFF (LOCK) mode. The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool clear command.