DTC B1956 Lincoln
Park-Neutral Switch Input Circuit-Signal Stuck Low
Park-Neutral Switch Input Circuit-Signal Stuck Low
Description
In Key-ON condition (engine off or on), the RFH (Radio Frequency Hub) control unit detected the following condition for 5 times continuously:The gear lever switch is stuck open for at least 1 second, although the TCM (TRANSMISSION CONTROL MODULE) control unit provides the signal for lever in position other than P and N signal on CAN network.
Cause and Solution
ERRORS IN THE TCM (TRANSMISSION CONTROL MODULE) CONTROL UNITFAULT ON CONNECTOR OR ON GEAR LEVER SWITCH TERMINALOPEN CIRCUIT ON THE WIRING BETWEEN PIN A OF THE GEAR LEVER SWITCH AND BODYFAULT ON THE CONNECTOR OR ECM (ENGINE CONTROL MODULE) TERMINALFAULT ON CONNECTOR OR RFH (RADIO FREQUENCY HUB) CONTROL UNIT TERMINALPIN F (A CONNECTOR) OF RFH (RADIO FREQUENCY HUB) CONTROL UNIT AND PIN I OF GEAR LEVER SWITCHFAULT OF THE GEAR LEVER SWITCHECM (ENGINE CONTROL MODULE) FAULTFAULT IN THE RFH (RADIO FREQUENCY HUB) CONTROL UNIT
Video Guide
Diagnostic Info
- DTC Code: B1956
- Brand: Lincoln