Powertrain, generic · Transmission

P08B6 Clutch Pedal Position Sensor B Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P08B6 means the signal of the second clutch pedal sensor has dropped below its valid range. Ford lists it in the 2020–23 gasoline OBD summary under dual PWM clutch sensors, together with P08A9/P08AA for sensor A, P08B7 for sensor B high and P08B9 for the A/B comparison; monitoring runs continuously and needs less than one second to flag a fault. Ford does not mark the code as non-MIL, unlike its clutch switch codes. For a PWM sensor, low usually means the output is stuck at ground (no pulses or 0 % duty cycle), caused by a short to ground, a lost supply or a dead sensor. GM's published tables have no sensor B. The driver mainly notices a warning lamp and missing start-stop.

Likely causes

Sensor B signal wire shorted to ground
Lost supply voltage to sensor B (open wire, connector off)
Failed clutch pedal position sensor B

Symptoms

  • Warning lamp on
  • Start-stop disabled
  • P08B9 correlation code may set alongside

Repair estimate

DifficultyEasyDIY possible
Parts and labour€50–300
Time0.3–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

clutch pedal position sensor bwiring harnessecm

Related codes

P08B7P08B4P08B9P08A9

References: fordservicecontent.com, law.cornell.edu.