Read Measuring Value Block

Read Measuring Value Block

NOTE:
- This Workshop Information lists the various measured value blocks for information purposes only. Perform the function "Read measuring value block" in Guided Fault Finding, here is also found a clarification of the corresponding measured values and notes on the function of various components. Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.
- Depending on the position of the actuator, the various flaps are closed and opened over the adjustment range of the actuator via the installed cam disk. Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.
- If a value greater than "250" (open circuit or fault in Ground (GND) connection) or less than "5" (open circuit, fault in 5 V voltage supply or short circuit to GND connection) is displayed for one (or more) potentiometer(s) in one (or more) control motor(s), this indicates a malfunction in wire connection to control motor or in potentiometer of the or a control motor (same B+ supply or GND connection).
- If displayed value of actuator is outside permitted range, check allocation of levers and cam disks which connect actuator shaft to flap(s).
- If no permissible value can be determined for a potentiometer in a control motor during the function "Basic Setting", display group corresponding to this control module displays a substitute value and stores a DTC in DTC memory. By using this substitute value (approx. average value in permissible tolerance range), the front Climatronic Control Module J255 (or Rear A/C Control Head (Climatronic) E265) controls the flap position when in emergency running mode.
- Depending on version of Climatronic Control Module J255 and Rear A/C Control Head (Climatronic) E265, "On" or "1" and "Off" or "0" may be displayed in measuring value block.