Mercedes-Benz CS1000 - Manual (Page 110)

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READING ACTUAL VALUES
1. IGNITION : Position 1
2. Press the AUTO button
3. Set both temperature selectors to 72 degrees F.
4. Press the REST button for more than 5 seconds.
5. The left display will alternately show the number "1" and the in-car temperature.
6. Press the AUTO button and the next component number and its value will be displayed.
7. Press the REST button to end the test program.
COMPONENT UNDER TEST
Number Component
01 In-Car Temperature Sensor with Aspirator Blower (B10/4)
02 Outside Temperature Sensor (B14)
03 Left Heater Core Temperature Sensor (B10/1)
04 Right Heater Core Temperature Sensor (B10/1)
05 Evaporator Temperature Sensor (B10/6)
06 Engine Coolant Temperature (ECT) Sensor (A/C) (B1/4)
07 Refrigerant Pressure in Bar
08 Refrigerant Temperature Sensor (B12/1)
10 Blower Control Voltage
11 Emissions (Refrigerant Leak) Sensor (B31)
12 Sun (Excessive Heat) Sensor (B32)
20 Control Current for Auxiliary Fan exp. : 7 = 7 mA
21 Engine RPM. example 00..99 (x100) = 9900
22 Vehicle Speed
23 PIN 58D exp. 99.0 = 99% of Battery Voltage
24 Battery Voltage : 12.8 = 12,8 Volt
40 Software Version Encoded
41 Hardware Version