Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chrysler >> 2009 >> 300 LX >> Repair and Diagnosis >> Body & Frame >> Windows >> (Driver Door Module (DDM) - Electrical Diagnostics) >> DTC Troubleshooting >> B1D0F-Driver Mirror Horizontal Position Sensor Input Circuit Low >> Diagnostic Test

Diagnostic Test

  1. TEST FOR INTERMITTENT CONDITION 
    1. Turn the ignition on.
    2. With the scan tool, record and erase the DTCs.
    3. Operate the Mirror Switch in all directions several times.
    4. Cycle the ignition from on to off three times.
    5. Turn the ignition on.
    6. With the scan tool, read the active DTCs.

      Does the scan tool display B1D0F DRIVER MIRROR HORIZONTAL POSITION SENSOR INPUT CIRCUIT LOW as active?

      Yes 

      • Go to Step  2.

      No 

  2. (P145) DRIVER MIRROR POSITION SENSOR SUPPLY 
    Fig 1: Measuring Voltage Between Driver Mirror Position Sensor Supply Circuit & Ground
    GC0096533Courtesy of CHRYSLER LLC
    1. Turn the ignition Off.
    2. Disconnect the Driver Mirror connector.
    3. Turn the ignition On.
    4. Measure the voltage between the (P145) Driver Mirror Position Sensor Supply circuit and ground.

      Is the voltage above 4.6 volts?

      No 

      • Go to Step  6.

      Yes 

      • Go to Step  3.
  3. (P65) DRIVER MIRROR HORIZONTAL POSITION SIGNAL 
    Fig 2: Measuring Voltage Between Driver Mirror Horizontal Position Signal Circuit & Ground
    GC0096534Courtesy of CHRYSLER LLC
    1. Reconnect the Driver Mirror connector.
      NOTE: The graphic shows the terminal end of the connector for reference only. Back probe the wire end of the connector with the mirror connected.
    2. Back probe and measure the voltage between the (P65) Driver Mirror Horizontal Position Signal circuit and ground.

      Is the voltage between 0.7 and 4.2 volts?

      Yes 

      • Record the measurement and Go To  5.

      No 

      • Go to Step  4.
  4. (P65) DRIVER MIRROR HORIZONTAL POSITION SIGNAL WIRE FOR A SHORT TO GROUND 
    Fig 3: Measuring Resistance Between Ground & Driver Mirror Horizontal Position Signal Circuit
    GC0096535Courtesy of CHRYSLER LLC
    1. Turn the ignition Off.
    2. Disconnect the Driver Mirror connector.
    3. Disconnect the Driver Door Module C4 connector.
    4. Measure the resistance between ground and the (P65) Driver Mirror Horizontal Position Signal circuit.

      Is the resistance below 5,000 Ohms?

      Yes 

      No 

  5. TEST THE (P65) DRIVER MIRROR HORIZONTAL POSITION SIGNAL WIRE FOR AN OPEN 
    Fig 4: Measuring Voltage Of Driver Mirror Horizontal Position Signal Circuit At C4 Connector
    GC0096536Courtesy of CHRYSLER LLC
    1. Gain access to the Driver Door Module C4 connector but DO NOT disconnect.
      NOTE: The graphic shows the terminal end of the connector for reference only. Back probe the wire end of the connector.
    2. Back probe and measure the voltage of the (P65) Driver Mirror Horizontal Position Signal circuit at the C4 connector.

      Is the voltage the same as measured at the mirror in the previous step?

      No 

      Yes 

  6. (P145) DRIVER MIRROR POSITION SENSOR SUPPLY WIRE OPEN 
    Fig 5: Measuring Voltage Between Driver Mirror Position Sensor Supply Circuit & Ground
    GC0096525Courtesy of CHRYSLER LLC
    1. Gain access to the Driver Door Module C4 connector but DO NOT disconnect.
      NOTE: The graphic shows the terminal end of the connector for reference only. Back probe the wire end of the connector.
    2. Back probe and measure the voltage between the (P145) Driver Mirror Position Sensor Supply circuit and ground.

      Is the voltage above 4.8 volts?

      Yes 

      No