LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2016 >> Fiesta ST >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Engine Controls DTCS >> 1.6L Duratec Ti-VCT
April 5, 2026: LEMON Manuals is launched! Read the announcement.

1.6L Duratec Ti-VCT

DTC INDEX

DTC Description Action
P0125 Insufficient Coolant Temp For Closed Loop Fuel Control REFER to: Engine Cooling .
P0128 Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature) REFER to: Engine Cooling .
P0217 Engine Coolant Overtemperature Condition REFER to: Engine Cooling .
P0460 Fuel Level Sensor "A" Circuit First, Refer to Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) .
If sent here from Engine Controls article, REFER to: Instrumentation, Message Center and Warning Chimes .
P0461 Fuel Level Sensor "A" Circuit Range/Performance First, Refer to Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) .
If sent here from Engine Controls article, REFER to: Instrumentation, Message Center and Warning Chimes .
P0462 Fuel Level Sensor "A" Circuit Low First, Refer to Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) .
If sent here from Engine Controls article, REFER to: Instrumentation, Message Center and Warning Chimes .
P0463 Fuel Level Sensor "A" Circuit High First, Refer to Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) .
If sent here from Engine Controls article, REFER to: Instrumentation, Message Center and Warning Chimes .
P0504 Brake Switch "A"/" B" Correlation REFER to: Cruise Control .
P0532 A/C Refrigerant Pressure Sensor "A" Circuit Low For vehicles with EMTC, REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) .
For vehicles with EATC, REFER to: Climate Control System - Vehicles With: Electronic Automatic Temperature Control (EATC) .
P0533 A/C Refrigerant Pressure Sensor "A" Circuit High For vehicles with EMTC, REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) .
For vehicles with EATC, REFER to: Climate Control System - Vehicles With: Electronic Automatic Temperature Control (EATC) .
P0557 Brake Booster Pressure Sensor Circuit Low REFER to: Anti-Lock Brake System (ABS) and Stability Control .
P0558 Brake Booster Pressure Sensor Circuit High REFER to: Anti-Lock Brake System (ABS) and Stability Control .
P0562 System Voltage Low REFER to: Charging System - 1.6L Duratec-16V Ti-VCT (88kW/120PS) - Sigma .
P0563 System Voltage High REFER to: Charging System - 1.6L Duratec-16V Ti-VCT (88kW/120PS) - Sigma .
P0578 Cruise Control Multifunction Input A Circuit Stuck REFER to: Cruise Control .
P0579 Cruise Control Multifunction Input A Circuit Range/Performance REFER to: Cruise Control .
P0645 A/C Clutch Relay Control Circuit For vehicles with EMTC, REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) .
For vehicles with EATC, REFER to: Climate Control System - Vehicles With: Electronic Automatic Temperature Control (EATC) .
P0646 A/C Clutch Relay Control Circuit Low For vehicles with EMTC, REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) .
For vehicles with EATC, REFER to: Climate Control System - Vehicles With: Electronic Automatic Temperature Control (EATC) .
P0647 A/C Clutch Relay Control Circuit High For vehicles with EMTC, REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) .
For vehicles with EATC, REFER to: Climate Control System - Vehicles With: Electronic Automatic Temperature Control (EATC) .
P065B Generator Control Circuit Range/Performance INSTALL a new generator. Refer to: Generator - 1.6L Duratec-16V Ti-VCT (88kW/120PS) - Sigma .
P065C Generator Mechanical Performance REFER to: Charging System - 1.6L Duratec-16V Ti-VCT (88kW/120PS) - Sigma .
P06E9 Engine Starter Performance REFER to: Starting System .
P0830 Clutch Pedal "A" Circuit REFER to: Starting System .
P0833 Clutch Pedal Switch "B" Circuit REFER to: Cruise Control .
P0850 Park / Neutral Switch Input Circuit REFER to: Starting System .
P0A3B Generator Over Temperature REFER to: Charging System - 1.6L Duratec-16V Ti-VCT (88kW/120PS) - Sigma .
P162D Internal Control Module Cruise Control Performance REFER to: Cruise Control .
P1712 Transmission Torque Reduction Request Signal Diagnose and repair all TCM Diagnostic Trouble Codes (DTCs) first. Clear Diagnostic Trouble Codes (DTCs) and retest. If only DTC P1712 returns, then perform Diagnosis by Symptom. Refer to: Diagnosis By Symptom .
P1921 Transmission Range Signal This DTC sets when there is a difference between the hardwired "OK-to-Crank" signal and the "OK-to-crank" network message from the TCM while the engine is cranking. Diagnose PCMDTC
P0850  if it is set. If P0850 is not set, clear the DTC.
P2535 Ignition Switch Run/Start Position Circuit High REFER to: Starting System .
U012D Lost Communication With Generator Control Module REFER to: Charging System - 1.6L Duratec-16V Ti-VCT (88kW/120PS) - Sigma .
U0167 Lost Communication With Vehicle Immobilizer Control Module For vehicles without Keyless Entry, REFER to: Passive Anti-Theft System (PATS) . For vehicles with Keyless Entry, REFER to: Passive Anti-Theft System (PATS) .
U0426 Invalid Data Received From Vehicle Immobilizer Control Module For vehicles without Keyless Entry, REFER to: Passive Anti-Theft System (PATS) . For vehicles with Keyless Entry, REFER to: Passive Anti-Theft System (PATS) .
U042E Invalid Data Received From Generator Control Module REFER to: Charging System - 1.6L Duratec-16V Ti-VCT (88kW/120PS) - Sigma .
All Other DTCs - Refer to Engine Controls - Symptom Charts (Except Diesel & Hybrid) .