Electronic Climate Control (Ecc) Diagnostic Trouble Codes: Diagnosis Volvo V40 I рестайлинг

Diagnostic trouble code (DTC) information

Condition

Scheme 264

Diagnostic trouble code (DTC) ECC-121 is stored if the ECC control module detects that the outside temperature sensor signal is missing or that there is a short-circuit to ground in the signal cable.

Possible Source

1. Open-circuit in outside temperature sensor or signal cable.
2. Short-circuit to ground in the signal cable.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Diagnostic trouble code (DTC) ECC-122 is stored if the ECC control module detects a short-circuit to supply voltage in the outside temperature sensor signal cable.

Possible Source

1. Short-circuit in the outside temperature sensor.
2. Short-circuit to reference voltage in the signal cable from the outside temperature sensor to ECC control module.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Scheme 265

Diagnostic trouble code (DTC) ECC-123 is stored if the ECC control module detects that there is no passenger compartment temperature sensor (in the ECC control module) or that there is a short-circuit to ground in the signal cable.

Possible Source

1. Open-circuit in the passenger compartment temperature sensor.
2. Short-circuit to ground in the passenger compartment temperature sensor

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Scheme 266

1. Ignition on.
2. Connectors connected.
3. ECC control module connected. Erase the diagnostic trouble codes (DTC).

1. Continue Refer to «Checking diagnostic trouble codes (DTCs), continued»(ref-441376-S32541496802011121500000)

Checking diagnostic trouble codes (DTCs), continued

1. Ignition off.
2. Ignition on. Read off diagnostic trouble codes (DTCs).

Has diagnostic trouble code (DTC) ECC-123 recurred?

1. YES Refer to «Replacing the component»(ref-441376-S09405009732011121500000)
2. NO Refer to «Verification»(ref-441376-S10357319732011121500000)

Condition

Diagnostic trouble code (DTC) ECC-124 is stored if the ECC control module detects a short-circuit to supply voltage in the passenger compartment temperature sensor (in the ECC control module) signal cable.

Possible Source

1. Short-circuit to supply voltage in the passenger compartment temperature sensor.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Checking diagnostic trouble code (DTC)

1. Ignition on.
2. Connectors connected.
3. ECC control module connected. Erase the diagnostic trouble codes (DTC).

1. Continue Refer to «Checking diagnostic trouble codes (DTCs), continued»(ref-441376-S19719386262011121500000)

1. Ignition off.
2. Ignition on. Read DTCs.

Has diagnostic trouble code (DTC) ECC-124 recurred?

1. YES Refer to «Replacing the component»(ref-441376-S17601386892011121500000)
2. NO Refer to «Verification»(ref-441376-S34171564352011121500000)

Condition

Scheme 267

Diagnostic trouble code (DTC) ECC-135 is stored if the ECC control module detects that the engine coolant temperature sensor signal is missing or that there is a short-circuit to ground in the signal cable.

Possible Source

1. Open-circuit in engine coolant temperature sensor or signal cable.
2. Short-circuit to ground in the signal cable.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Diagnostic trouble code (DTC) ECC-136 is stored if the ECC control module detects a short-circuit to supply voltage in the engine coolant temperature (ECT) sensor signal cable.

Possible Source

1. Short-circuit in engine coolant temperature sensor.
2. Short-circuit to reference voltage in the signal cable from the engine coolant temperature sensor to ECC control module.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Scheme 268

Diagnostic trouble code (DTC) ECC-137 is stored if the ECC control module detects that the evaporator sensor signal is missing or that there is a short-circuit to ground in the signal cable.

Possible Source

1. Open-circuit in evaporator sensor or in signal cable.
2. Short-circuit to ground in the signal cable.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Diagnostic trouble code (DTC) ECC-138 is stored if the ECC control module detects a short-circuit to supply voltage in the evaporator sensor signal cable.

Possible Source

1. Short-circuit in evaporator sensor.
2. Short-circuit to reference voltage in the signal cable from the evaporator sensor to ECC control module.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Scheme 269

Diagnostic trouble code (DTC) ECC-139 is stored if the ECC control module detects that the voltage from generator (GEN) D+ is missing.

This diagnostic trouble code (DTC) is only stored if road speed is above 50 km/h.

Possible Source

1. Open-circuit in cable between generator (GEN) D+ and ECC control module.

Fault symptom[s]

1. Compressor does not start.
2. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.
3. The charging lamp in the combined instrument panel does not go out when the engine is running.

Scheme 270

1. Ignition off
2. ECC control module connected.
3. Ignition on. Connect a voltmeter between ground and generator (GEN) D+ terminal pin (behind the connector).

The voltmeter should show between 0.7 V and about 2 V.

1. OK Refer to «Checking the voltage, continued»(ref-441376-S36912020802011121500000)
2. NOT OK Refer to «Replacing the component»(ref-441376-S42890285982011121500000)

Condition

Scheme 271

Diagnostic trouble code (DTC) ECC-140 is stored if the ECC control module detects that the vehicle speed signal from the combined instrument panel corresponds to a speed above 250 km/h for a certain period.

Possible Source

1. Defective engine speed (RPM) sensor.
2. Defective speedometer/combined instrument panel.

Fault symptom[s]

1. Maximum speedometer reading.

Condition

Scheme 272

Diagnostic trouble code (DTC) ECC-211 is stored if the ECC control module detects a short-circuit to ground in the temperature damper motor position sensor signal cable.

Possible Source

1. Short-circuit to ground in the signal cable.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Diagnostic trouble code (DTC) ECC-212 is stored if the ECC control module detects a short-circuit to supply voltage in the temperature damper motor position sensor signal cable or that the signal is missing.

Possible Source

1. Open-circuit in signal cable from the damper motor potentiometer to the ECC control module.
2. Open-circuit in the potentiometer.
3. Short-circuit to supply voltage in the signal cable.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Diagnostic trouble code (DTC) ECC-221 is stored if the ECC control module detects a short-circuit to ground in the air distribution damper motor position sensor signal cable.

Possible Source

1. Short-circuit to ground in the signal cable.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Diagnostic trouble code (DTC) ECC-222 is stored if the ECC control module detects a short-circuit to supply voltage in the air distribution damper motor position sensor signal cable or that the signal is missing.

Possible Source

1. Open-circuit in signal cable from the damper motor potentiometer to the ECC control module.
2. Damper motor potentiometer is short-circuited.
3. Short-circuit to supply voltage in the signal cable.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.

Condition

Diagnostic trouble code (DTC) ECC-311 is stored if the ECC control module detects that the power supply from the ECC control module to the temperature damper motor is not approximately 10 V.

Possible Source

1. Short-circuit to supply voltage or ground in power supply to temperature damper motor.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.
2. Control module keeps the damper motor shut down for as long as the fault persists.

Condition

Diagnostic trouble code (DTC) ECC-312 is stored if the ECC control module detects that the signal to the temperature damper motor does not assume a correct value within 12 seconds.

Possible Source

1. Temperature damper motor blocked.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.
2. The damper motor is stopped.

Condition

Diagnostic trouble code (DTC) ECC-321 is stored if the ECC control module detects that the power supply from the ECC control module to the air distribution damper motor is not approximately 10 V.

Possible Source

1. Short-circuit to supply voltage or ground in power supply to air distribution damper motor.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.
2. Control module keeps the damper motor shut down for as long as the fault persists.

Condition

Diagnostic trouble code (DTC) ECC-322 is stored if the transmission control module (TCM) registers that the damper motor does not assume the correct position approximately 12 seconds.

Possible Source

1. Air distribution damper motor blocked.

Fault symptom[s]

1. Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.
2. The damper motor is stopped.