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HVAC Control Module, 2015 - 2017 My

DTC / Description Error Message Malfunction Criteria and Threshold Value Secondary Parameters with Enable Conditions Monitoring Time Length Frequency of checks, MIL Illum
P0530 A/C Refrigerant Pressure Sensor "A" Circuit P/T Sensor Pressure Sensor
  • Corresponding internal voltage > 3.36 V; < 0.38 V
  • Corresponding internal resistance > 32 mΩ; > 320 kΩ
  • Internal self check for pressure sensor = invalid [-]
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0531 A/C Refrigerant Pressure Sensor "A" Circuit Range/Performance P/T Sensor
  • Difference between refrigerant pressure sensor value and modeled pressure value exceeds valid range ≥ pressure threshold p(T) (calculated threshold as a function p(T) out of p/T sensor temperature sensor "A" value p(T) = 3 for T < 2° C; p(T) = (1/48*T + 71/24) for 2° C ≤ T ≤ 50° C; p(T) = 4 for T > 50° C;)
  • LIN communication = active
  • Refrigerant system time off (is equal to vehicle shutdown time without refrigerant system activity) ≥ 6
  • Difference between refrigerant temperature and ambient temperature < 10 K
  • Difference between refrigerant temperature and battery inlet coolant temperature < 10 K
  • Concerning other ECUs:
  • Battery inlet coolant sensor monitoring in BECM = no failures detected
  • Battery coolant distribution valve monitoring in BECM = no failures detected
  • Battery cooling monitoring in BECM = no failures detected
  • Battery temperature sensor monitoring in BECM = no failures detected
  • Ambient air temperature sensor monitoring in ECM
  • Once / DCY
  • 2 DCY
  • Difference between maximum refrigerant pressure sensor value and minimum refrigerant pressure sensor value during the DCY < 0.5 bar
  • A/C compressor speed ≥ 800 RPM
  • For at least (cumulative) ≥ 30.0 s
  • For activation:
  • After ignition off (during HVAC keep alive-time)
  • 1 DCY
  • ADC conversion timeout > 0.0025 ms
  • LIN communication = active [-]
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
  • ADC conversion functional = invalid [-]
  • ASIC internal self check = invalid [-]
P0533 A/C Refrigerant Pressure Sensor "A" Circuit High P/T Sensor Pressure Sensor
  • Pressure value above valid range received from sensor > 35 bar
  • LIN communication = active [-]
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0534 A/C Refrigerant Charge Loss Refrigerant Circuit Low Pressure Monitoring
  • Refrigerant system pressure sensor value is below valid range < 2 bar
  • Ambient air temperature ≥ 2° C
  • Concerning other ECUs:
  • Ambient air temperature sensor monitoring in BCM = no failures detected
  • 5.0 s
  • 2 DCY
  • Continuous
P0604 Internal Control Module Random Access Memory (RAM) Error HVAC Detects A Control Module Ram Error
  • Pattern read/write check = invalid [-]
  • Startup
  • Once / DCY
  • 1 DCY
P0605 Internal Control Module Read Only Memory (ROM) Error HVAC Detects A Control Module ROM Error
  • Calculated checksum != stored ROM checksum [-]
  • Startup
  • Continuous
  • 1 DCY
P062F Internal Control Module EEPROM Error HVAC Detects A Control Module EEPROM Error
  • Calculated EEPROM checksum != stored EEPROM checksum [-]
  • Startup
  • Once / DCY
  • 1 DCY
P064F Unauthorized Software/Calibration Detected HVAC Detects If A Not Permitted HVAC Control Module Is Installed
  • Received OBD requirement code flag != expected flag [-]
  
  • 0.0 s
  • 1 DCY
  • Continuous
P0D69 A/C Compressor Motor Voltage Sensor "A" Performance Electric A/C Compressor Voltage Sensor A
  • A/C compressor voltage sensor value > 485.0 V
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
  • Difference between motor voltage sensor "A" and "B" value exceeds valid range > 10 (from motor voltage sensor "B" value) %
P0D6A A/C Compressor Motor Voltage Sensor "A" Circuit High Electric A/C Compressor Voltage Sensor A
  • A/C compressor voltage sensor value > 492.0 V
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0D6B A/C Compressor Motor Voltage Sensor "A" Circuit Low Electric A/C Compressor Voltage Sensor A
  • A/C compressor voltage sensor value < 3.0 V
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0D6F A/C Compressor Motor Current High Electric A/C Compressor Current Sensor
  • A/C compressor current sensor value > 40.0 A
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0D71 A/C Compressor Control Module Internal Temperature Sensor Performance Electric A/C Compressor Temperature Sensor
  • Crosscheck between refrigerant temperature sensor value and A/C compressor control module temperature sensor value exceeds valid range > 15 K
  • LIN communication = active
  • Refrigerant system time off (is equal to vehicle shutdown time without refrigerant system activity) ≥ 6.0 h
  • Once / DCY
  • 2 DCY
P0D72 A/C Compressor Control Module Internal Temperature Sensor Circuit High Electric A/C Compressor Temperature Sensor
  • A/C compressor temperature sensor value > 178° C
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0D73 A/C Compressor Control Module Internal Temperature Sensor Circuit Low Electric A/C Compressor Temperature Sensor
  • A/C compressor temperature sensor value < -39° C
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EA9 A/C Compressor Motor Voltage Sensor "B" Circuit Performance Electric A/C Compressor Voltage Sensor B
  • A/C compressor reference voltage sensor value > 485.0 V
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EAA A/C Compressor Motor Voltage Sensor "B" Circuit High Electric A/C Compressor Voltage Sensor B
  • A/C compressor reference voltage sensor value > 492.0 V
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EAB A/C Compressor Motor Voltage Sensor "B" Circuit Low Electric A/C Compressor Voltage Sensor B
  • A/C compressor reference voltage sensor value < 3.0 V
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EAE A/C Compressor Motor Current Sensor Range/Performance Electric A/C Compressor Current Sensor
  • A/C compressor current sensor value > 1.5 A
  • LIN communication = active
  • Vehicle high voltage system = active
  • Requested A/C compressor speed (standstill mode) = 0 RPM
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
  • Difference between A/C compressor current sensor and model based A/C compressor current out of A/C compressor phases current sensor values exceeds valid range > 25%
  • LIN communication = active
  • Vehicle high voltage system = active
  • A/C compressor speed. 2, 000 RPM
  • A/C compressor speed < 6, 000 RPM
  • A/C compressor current sensor > 1.0 A
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EB0 A/C Compressor Motor Current Sensor Circuit High Electric A/C Compressor Current Sensor
  • A/C compressor current state sensor value > 65.5 A
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EB2 A/C Compressor Motor Phase U Current Sensor Circuit High Electric A/C Compressor Phase Current Sensor U
  • A/C compressor motor phase U sensor current value > 39.2 A
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EB3 A/C Compressor Motor Phase U Current Sensor Circuit Low Electric A/C Compressor Phase Current Sensor U
  • A/C compressor motor phase U sensor current value < -39.2 A
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EB4 A/C Compressor Motor Phase U Current Sensor Range/Performance Electric A/C Compressor Phase Current Sensor U
  • A/C compressor motor phase V sensor current value exceeds valid range > 2.0 A; < -2.0 A
  • LIN communication = active
  • Vehicle high voltage system = active
  • A/C compressor speed request ≥ 800 RPM
  • 5 failure counts out of 5 samples 100.0 ms / sample on start up and on every rerun
  • 2 DCY
  • Difference between measured A/C compressor motor phase U sensor current and expected phase U current value exceeds valid range > 20 (from +8, 1 A) %
  • LIN communication = active
  • Vehicle high voltage system = active
  • A/C compressor speed request ≥ 800 RPM
  • 5 failure counts out of 5 samples 100.0 ms / sample on start up and on every rerun
  • 2 DCY
  • Difference between A/C compressor current sensor and model based A/C compressor current out of A/C compressor phases current sensor values exceeds valid range > 25%
  • LIN communication = active
  • Vehicle high voltage system = active
  • A/C compressor speed. 2, 000 RPM
  • A/C compressor speed < 6, 000 RPM
  • A/C compressor current sensor > 1.0 A
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
  • A/C compressor motor phase U sensor current value > 33.7
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
  • A/C compressor motor phase U sensor current value < -33.7
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EB5 A/C Compressor Motor Phase V Current Sensor Circuit High Electric A/C Compressor Phase Current Sensor V
  • A/C compressor motor phase V sensor current value > 39.2 A
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EB6 A/C Compressor Motor Phase V Current Sensor Circuit Low Electric A/C Compressor Phase Current Sensor V
  • A/C compressor motor phase V sensor current value < -39.2 A
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100 ms / sample continuous
  • 2 DCY
P0EB7 A/C Compressor Motor Phase V Current Sensor Range/Performance Electric A/C Compressor Phase Current Sensor V
  • A/C compressor motor phase V sensor current value > 33.7
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
  • A/C compressor motor phase V sensor current value < -33.7
  • A/C compressor motor phase V sensor current value exceeds valid range > 2.0 A; < -2.0 A
  • LIN communication = active
  • Vehicle high voltage system = active
  • A/C compressor speed request ≥ 800 RPM
  • 5 failure counts out of 5 samples 100.0 ms / sample on start up and on every rerun
  • Difference between measured A/C compressor motor phase V sensor current and expected phase U current value exceeds valid range > 20 (from -14.7 A) %
  • Difference between A/C compressor current sensor and model based A/C compressor current out of A/C compressor phases current sensor values exceeds valid range > 25%
  • LIN communication = active
  • Vehicle high voltage system = active
  • A/C compressor speed. 2, 000 RPM
  • A/C compressor speed < 6, 000 RPM
  • A/C compressor current sensor > 1.0 A
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
P0EBC A/C Refrigerant Temperature Sensor "A" Circuit P/T Sensor Temperature Sensor "A"
  • Corresponding internal voltage > 0.32 V
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
  • Corresponding internal voltage < 0.08 V
  • Corresponding internal resistance > 32.0 mΩ
P0EBD A/C Refrigerant Temperature Sensor "A" Circuit High P/T Sensor Temperature Sensor "A"
  • Temperature value above valid range received from sensor > 120° C
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EBE A/C Refrigerant Temperature Sensor "A" Circuit Low P/T Sensor Temperature Sensor "A"
  • Temperature value below valid range received from sensor < -38° C
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EBF A/C Refrigerant Temperature Sensor "A" Range/Performance P/T Sensor Temperature Sensor "A"
  • Difference between refrigerant temperature sensor value and internal temperature sensor value exceeds valid range > 15
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EC1 A/C Refrigerant Temperature Sensor "B" Circuit P/T Sensor Temperature Sensor "B"
  • Measured temperature value > 150; < -40
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EC2 A/C Refrigerant Temperature Sensor "B" Circuit High P/T Sensor Temperature Sensor "B"
  • Temperature value above valid range received from sensor > 120° C
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EC3 A/C Refrigerant Temperature Sensor "B" Circuit Low P/T Sensor Temperature Sensor "B"
  • Temperature value below valid range received from sensor < -38° C
  • LIN communication = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EC5 A/C Compressor Motor Speed Sensor Range/Performance Electric A/C Compressor Motor Speed
  • Difference between requested A/C compressor speed and actual A/C compressor speed > 200 RPM
  • LIN communication = active
  • Vehicle high voltage system = active
  • Constant A/C compressor speed request for > 30.0 s
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
P0EC7 A/C Power Supply Relay Control Circuit Low 12V Relay
  • Relay driver feedback voltage < 1.5 V
  • Command = on [-]
  • 60.0 ms
  • 2 DCY
  • Continuous
P0EC8 A/C Power Supply Relay Control Circuit High 12V Relay
  • Relay driver feedback voltage > 3.5 V
  • Command = off [-]
  • 300.0 ms
  • 2 DCY
  • Continuous
P0EC9 A/C Refrigerant Distribution Valve "A" Stuck/Open Refrigerant Distribution Valve
  • Filtered battery inlet coolant temperature decrease ≥ 1.5 K
  • LIN communication = active
  • Battery coolant request = none
  • A/C compressor speed ≥ 750 RPM
  • Coolant pump speed ≥ 10%
  • For at least ≥ 30.0 s
  • Vehicle shutdown-time (is equal to vehicle shutdown time without refrigerant system activity) ≥ 6.0 h
  • Initial battery inlet coolant temperature at monitoring start (battery cooling circuit) > 25° C
  • Battery inlet coolant temperature decrease before A/C compressor activity < 3 K
  • Initial ambient temperature ≥ initial battery temperature + 2° C
  • Ambient temperature change while monitoring < 4 K
  • Concerning other ECUs:
  • Vehicle shutdown time monitoring in ECM no failures detected
  • Battery inlet coolant sensor monitoring in BECM no failures detected
  • Battery coolant distribution valve monitoring in BECM no failures detected
  • Battery cooling monitoring in BECM no failures detected
  • Battery temperature sensor monitoring in BECM no failures detected
  • Ambient air temperature sensor monitoring in ECM no failures detected
  • 90.0 s
  • 2 DCY
  • Once / DCY
P1296 Malfunction In Cooling System Refrigerant Distribution Valve
  • Filtered battery inlet coolant temperature increase ≥ 0.5 K
  • LIN communication = active
  • Battery coolant request = active
  • Battery coolant distribution valve position = active battery cooling
  • A/C compressor speed ≥ 750 RPM
  • For at least (cumulative) ≥ 207.0 s
  • Battery coolant pump speed (battery cooling circuit) ≥ 20%
  • Initial battery inlet coolant temperature at active battery cooling request (battery cooling circuit) ≥ 30° C
  • Battery inlet coolant temperature ≤ battery temperature + 1° C
  • Concerning other ECUs:
  • Battery inlet coolant sensor monitoring in BECM no failures detected
  • Battery coolant distribution valve monitoring in BECM no failures detected
  • Battery cooling monitoring in BECM no failures detected
  • Battery temperature sensor monitoring in BECM no failures detected
  • 210.0 s
  • 2 DCY
  • Multiple
P165D Refrigerant Pressure Too High Refrigerant Circuit High Pressure Monitoring
  • Refrigerant high pressure count (high pressure is counted when system pressure exceeds 32 bar) ≥ 21 [-]
  • LIN communication = active
  • Radiator fan operating status = no error detected
  • For activation:
  • Refrigerant high pressure count ≥ 20 -
  • Vehicle speed once ≥ 20 km/h
  • A/C compressor speed once > 0 RPM
  • Concerning other ECUs:
  • Vehicle speed sensor monitoring in BSCM = no failures detected
  • Radiator fan monitoring in ECM = no failures detected
  • 10.0 m
  • 2 DCY
  • Once / DCY
  • Refrigerant system pressure sensor value is between [] and [] < 32 bar; > 27 bar
  • LIN communication = active
  • Refrigerant high pressure count ≥ 1 [-]
  • 60.0 s
  • 2 DCY
  • Continuous
P2612 A/C Refrigerant Distribution Valve "A" Control Circuit Low Refrigerant Distribution Valve
  • Valve driver feedback voltage < 1.5 V
  • Command = on
  • 60.0 ms
  • 2 DCY
  • Valve driver feedback current > 6.0 A
P2613 A/C Refrigerant Distribution Valve "A" Control Circuit High Refrigerant Distribution Valve
  • Valve driver feedback voltage > 3.5 V
  • Command = off
  • 300.0 ms
  • 2 DCY
  • Valve driver feedback current < 30.0 mA
  • Command = on
P26FD A/C Compressor Internal Control Module Performance Electric A/C Compressor ECU
  • CPU internal self check for bridge driver = invalid [-]
  • Calculated checksum != stored checksum for any ROM-part except boot loader [-]
  • Calculated EEPROM checksum != stored EEPROM Checksum [-]
  • Last reset reason = watchdog timeout [-]
  • ADC query time < ADC sample time [-]
  • LIN communication = active
  • Vehicle high voltage system = active
  • 5 failure counts out of 5 samples 100.0 ms / sample continuous
  • 2 DCY
U0010 Medium Speed CAN Communication Bus CAN: Medium Speed CAN
  • CAN bus controller flag = bus off [-]
  
  • 100.0 ms
  • 2 DCY
  • Continuous
U0011 Medium Speed CAN Communication Bus Performance CAN: Medium Speed CAN
  • Global CAN message time out counter = expired [-]
  
  • 450.0 ms
  • 2 DCY
  • Continuous
U0073 Control Module Communication Bus "A" Off CAN: Engine Control Module (ECM) Engine Cooling Fan Monitoring
  • LIN controller flag = bus off
  • Or
  • LIN message from electric A/C compressor and refrigerant pressure and temperature sensor = no response
  
  • 4.0 s
  • 2 DCY
  • Continuous
U0100 Lost Communication With ECM/PCM "A" CAN: Engine Control Module (ECM) OBD Exhaust Type Monitoring
  • CAN message timeout counter = expired [-]
  
  • 5.0 s
  • 2 DCY
  • Continuous
U0111 Lost Communication With Battery Energy Control Module "A" CAN: Battery Energy Control Module (BECM) Temperature Monitoring
  • CAN message timeout counter = expired [-]
  
  • 5.0 s
  • 2 DCY
  • Continuous
U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module CAN: Brake System Control Module (BSCM) Vehicle Speed Sensor
  • CAN message timeout counter = expired [-]
  
  • 500.0 ms
  • 2 DCY
  • Continuous
U0140 Lost Communication With Body Control Module CAN: Body Control Module (BCM) Ignition Monitoring
  • CAN message timeout counter = expired [-]
  
  • 1.0 s
  • 2 DCY
  • Continuous
U016B Lost Communication With A/C Compressor Control Module Electric A/C Compressor ECU
  • LIN message from electric A/C compressor no response [-]
  • Time after ignition on ≥ 500.0 ms
  • 5.0 s
  • 2 DCY
  • Continuous
U019B Lost Communication With Battery Charger Control Module CAN: Battery Charger Control Module (BCCM) Pre Conditioning Monitoring
  • CAN message timeout counter = expired [-]
  
  • 5.0 s
  • 2 DCY
  • Continuous
U0401 Invalid Data Received From ECM/PCM "A" CAN: Engine Control Module (ECM) Engine Cooling Fan Monitoring
  • Information content = undefined [-]
  
  • 1.0 s
  • 2 DCY
  • Continuous
U0412 Invalid Data Received From Battery Energy Control Module "A" CAN: Battery Energy Control Module (BECM) Temperature Monitoring
  • Information content = undefined [-]
  
  • 5.0 s
  • 2 DCY
  • Continuous
U046C Invalid Data Received From A/C Compressor Control Module Electric A/C Compressor ECU
  • LIN message from electric A/C compressor = incomplete
  • Or
  • Value received from electric A/C compressor = response error
  • Or
  • LIN message checksum = invalid
  • Or
  • Value received from electric A/C compressor = undefined
  
  • 4.0 s
  • 2 DCY
U0605 Lost Communication With A/C Refrigerant Sensor "A" P/T Sensor
  • LIN message from refrigerant pressure and temperature sensor no response [-]
  • Time after ignition on ≥ 500.0 ms
  • 1.0 s
  • 2 DCY
  • Continuous
  • LIN message from refrigerant pressure and temperature sensor = incomplete
  • Or
  • Value received from slave = response error
  • Or
  • LIN message checksum = invalid
  • 4.0 s
U1103 Production Mode Active Production Vehicle Mode
  • Production mode flag = active [-]
  
  • 0.0 s
  • 1 DCY
  • Continuous
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