VW / Passat B5 (3B) / 08 - air-conditioning ( Climatronic PQ46) CAN / test of air-conditioning temperature sensors


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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

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.

Volkswagen workshop manuals for diagnostics

Log-in Buy