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.
Powertrain DTC Charts and Descriptions 4-45
Diagnostic Trouble Code (DTC) Charts and Descriptions
P0236 - Turbocharger/Supercharger Boost Sensor A Circuit Range/Performance (Continued)
All GO to Pinpoint Test DM.
P0237 - Turbocharger/Supercharger Boost Sensor A Circuit Low
Description: This DTC sets when there is a short to ground in the TCBP circuit.
Possible Causes: • TCBP circuit short to ground
• Damaged turbocharger boost pressure (TCBP) sensor
• Damaged harness connector
• Damaged harness
Diagnostic Aids: Check the harness for intermittent concerns, incorrect connections, routing, alterations and damage due to
contact with other components. This DTC may be accompanied by other DTCs. Check for other DTCs and diagnose those first.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test DM.
P0238 - Turbocharger/Supercharger Boost Sensor A Circuit High
Description: This DTC sets when there is an open circuit or high voltage in the TCBP circuit.
Possible Causes: • TCBP circuit open
• TCBP circuit short to voltage
• Damaged turbocharger boost pressure (TCBP) sensor
Diagnostic Aids: Check the harness for intermittent concerns, incorrect connections, routing, alterations and damage due to
contact with other components. This DTC may be accompanied by other DTCs. Check for other DTCs and diagnose those first.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test DM.
P023A - Charge Air Cooler Coolant Pump Control Circuit Open
Description: This DTC sets when the CAC circuit is open or an internal failure of the charge air cooler (CAC) pump occurs.
Possible Causes: • CAC circuit open
• Damaged CAC pump
Diagnostic Aids: A CAC circuit open condition will result in the CAC pump running continuously.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test KP.
P023B - Charge Air Cooler Coolant Pump Control Circuit Low
Description: This DTC sets when the CAC circuit is shorted to ground or an internal failure of the charge air cooler (CAC)
pump occurs.
Possible Causes: • CAC circuit short to ground
• Damaged CAC pump
Diagnostic Aids:
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test KP.
P023C - Charge Air Cooler Coolant Pump Control Circuit High
Description: This DTC sets when the CAC circuit is shorted to voltage or an internal failure of the charge air cooler (CAC)
pump occurs.
Possible Causes: • CAC circuit short to voltage
• Damaged CAC pump
2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015
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.