MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Powertrain Control-Emissions Diagnosis

P0723 - Output Shaft Speed (OSS) Sensor Circuit Intermittent

Powertrain Control-Emissions Diagnosis

Ford gasoline diagnostic supplementReference 4,881 / 6,619HTML edition
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Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.

4-94 Powertrain DTC Charts and Descriptions

Diagnostic Trouble Code (DTC) Charts and Descriptions

P0723 - Output Shaft Speed (OSS) Sensor Circuit Intermittent

Description: This DTC sets when the OSS sensor signal provided to the PCM is irregular or interrupted.

Possible Causes: • OSS connector not correctly seated

• OSS circuit intermittently short

• OSS circuit intermittently open

• Damaged OSS connector

• OSS sensor not installed correctly

• Damaged OSS sensor

Diagnostic Aids: Verify OSS harness and connector integrity.

Verify correct installation of the OSS sensor.

Application Key On Engine Off Key On Engine Running Continuous Memory

Manual Transmission GO to Pinpoint Test DP.

Automatic Transmission Refer to the Workshop Manual Section 307-01, Automatic Transmission, Diagnostic Trouble Code (DTC)

Index to continue diagnosis.

P07xx -

Description:

Possible Causes:

Diagnostic Aids: Refer to the appropriate 307-XX Workshop Manual Section or the Master DTC Chart on the Professional

Technician Society (PTS) web site to continue diagnosis.

Application Key On Engine Off Key On Engine Running Continuous Memory

All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.

P0830 - Clutch Pedal Switch A Circuit

Description: The PCM monitors the clutch pedal position (CPP) bottom of travel (CPP-BT) switch only during the calibrated

engine speed range (cranking speed range). This DTC sets when the CPP-BT switch does not indicate that the clutch is disengaged (clutch pedal pressed) when the engine is cranked.

Possible Causes: • Damaged CPP-BT switch

• Damaged CPP-BT harness

• GND circuit open to the CPP-BT switch

• Vehicle push-started with the clutch engaged (clutch pedal released)

• Aftermarket remote starting device

Diagnostic Aids: Verify the vehicle was not push started with the clutch engaged. Check for aftermarket equipment such as

remote starting devices which may bypass the CPP switch when cranking the engine. Refer to the Workshop Manual Section 303-06, Starting System, The Engine Does Not Crank to diagnose the symptom no start, no crank.

Application Key On Engine Off Key On Engine Running Continuous Memory

All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.

P0833 - Clutch Pedal Switch B Circuit

Description: The PCM monitors the clutch pedal position top of travel (CPP-TT) switch only during the calibrated engine

speed range (cranking speed range). This DTC sets when the CPP-TT does not indicate that the clutch is disengaged (clutch pedal pressed) when the engine is cranked.

Possible Causes: • Damaged CPP-TT switch

• Damaged CPP-TT harness

• GND circuit open to the CPP-TT switch

• Vehicle push-started with the clutch engaged (clutch pedal released)

• Aftermarket remote starting device

Diagnostic Aids: Verify the vehicle was not push started with the clutch engaged. Check for aftermarket equipment such as

remote starting devices which may bypass the CPP-TT switch when cranking the engine. Refer to the Workshop Manual Section 419-03, Cruise Control, the speed control does not disengage when the clutch pedal is applied to continue diagnosis.

Application Key On Engine Off Key On Engine Running Continuous Memory

2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015

Source reference 4881

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.