B1671

General Description

Parking Position Switch indicates that Shift Lever is in P range or not.
Smart key Module decides that engine starting is enable after receiving Parking Position Switch signal.

DTC Description

SMART KEY Module sets DTC B1971 if vehicle speed is over 3km/h while parking switch signal is ON.

DTC Detecting Condition






Diagnostic Circuit Diagram






Monitor Scantool data

Check parking position switch status.
1. Connect scantool with diagnostic connector.
2. Check current data with scantool.
3. Check "Shift lever P position" parameter on current data.
4. Check that data is appropriately changeable according to the shift lever position in P or others.

Specification :P position : ON, Not in P position : OFF.






5. Is the shift lever P position normal ?






Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration,or damage.
3. Has a problem been found?






Signal Circuit Inspection

Check Signal Circuit
1. IG KEY OFF.
2. Disconnect parking position switch connector.
3. IG KEY ON.
4. Measure voltage between signal terminal of parking position switch harness connector and chassis ground.

Specification :Battery Voltage

5. Is the measured voltage within specification ?






Component Inspection

Check Parking Position Switch
1. IG KEY OFF.
2. Disconnect Parking Position switch connector.
3. Measure resistance between one and the other connector when parking position switch ON and OFF.

Specification :Measurement 1 : Infinite (Infinity), Measurement 2 : About below 1Ohms

4. Is the measured resistance within specification ?






Verification of Vehicle Repair

After a repair, it is essential to verify that the fault has been corrected.
1. Connect scantool and select "Diagnostic Trouble Codes(DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present?