Parking Position Switch indicates that Shift Lever is in P range or not. SMK unit decides that engine starting is enable after receiving Parking Position Switch signal.
SMK unit sets DTC B1971 if vehicle speed is over 3km/h while parking switch signal is ON.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Parking switch is On
•
Vehicle speed from CLU is above 3km/h IGN ON
•
Ignition switch is On | 1. Poor Connection in harness 2. Faulty Parking Switch 3. Faulty Smartkey Unit |
Enable Conditions |
•
Button start system equipped
•
Ignition ON
•
Parking switch ON
•
Vehicle Speed above 3km/h | |
Threshold value |
•
Parking switch is ON when signal voltage is below 2V
•
Parking switch is OFF when signal voltage is above 7V | |
Failsafe |
•
Parking switch is On for 10 seconds with Ignition On & Vehicle speed above 3km/h | |
DTC Erasing Time |
•
Ignition OFF
•
Parking switch is OFF
•
Vehicle speed is below 3km/h DTC erasing immediately with above 3 conditions meet |
