Diagnostic procedures for a VAG diagnostics
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VW / Passat B5 (3B) / 08 - air-conditioning ( Climatronic PQ46) CAN / test of air-conditioning temperature sensors
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Model
Control unit
Diagnostic operation
Diagnostic procedure
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Conditions:
- on-board voltage > XXV
- engine speed = X rpm
- air-conditioning vents = open
- recirculation = OFF
- air-conditioning = -Lo-
- air-conditioning vents - air distribution at centre + legroom
- air-conditioning = OFF (ECON = ON)
- ventilation = MAX
connect with the control unit XX - Air-conditioning
XX - Measured values group XXX
required values
field X = ambient temperature - actual value
if values are not achieved - check component:
- temperature sensor GXX (ambient temperature)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - left - actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - left)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - right side- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - right side)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - legroom - left- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - legroom - left)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - legroom - right side- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - legroom - right side)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - vaporiser - actual value
if values are not achieved - check component:
- temperature sensor GXXX± (vaporiser)
- line
all values in groups XXX and XXX must not mutually differ by more than ± X °C
Start the engine
set:
air-conditioning = ON (ECON = OFF)
wait XXXs
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - left - actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - left)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - right side- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - right side)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - legroom - left- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - legroom - left)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - legroom - right side- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - legroom - right side)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - vaporiser - actual value
if values are not achieved - check component:
- temperature sensor GXXX± (vaporiser)
- line
all values in groups XXX and XXX must not mutually differ by more than ± X °C
- on-board voltage > XXV
- engine speed = X rpm
- air-conditioning vents = open
- recirculation = OFF
- air-conditioning = -Lo-
- air-conditioning vents - air distribution at centre + legroom
- air-conditioning = OFF (ECON = ON)
- ventilation = MAX
connect with the control unit XX - Air-conditioning
XX - Measured values group XXX
required values
field X = ambient temperature - actual value
if values are not achieved - check component:
- temperature sensor GXX (ambient temperature)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - left - actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - left)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - right side- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - right side)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - legroom - left- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - legroom - left)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - legroom - right side- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - legroom - right side)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - vaporiser - actual value
if values are not achieved - check component:
- temperature sensor GXXX± (vaporiser)
- line
all values in groups XXX and XXX must not mutually differ by more than ± X °C
Start the engine
set:
air-conditioning = ON (ECON = OFF)
wait XXXs
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - left - actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - left)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - right side- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - right side)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - legroom - left- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - legroom - left)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - air-conditioning vents - legroom - right side- actual value
if values are not achieved - check component:
- temperature sensor GXXX (air-conditioning vents - legroom - right side)
- line
XX - Measured values group XXX
required values
field X = temperature sensor - vaporiser - actual value
if values are not achieved - check component:
- temperature sensor GXXX± (vaporiser)
- line
all values in groups XXX and XXX must not mutually differ by more than ± X °C
You are not logged! System works in DEMO mode only now where numbers are replaced with X characters. For 49 EUR only You will get access into full system. You can pay by credit card or bank transfer. Click BUY button for purchase and You will get login to diagnostic procedures database imediatelly.