Electronic level adjustment (ELA), electrical system testing · ad3233s6000a · Mercedes-Benz WIS

AD32.33-S-6000A

Electronic level adjustment (ELA), electrical system testing

28.8.97

MODEL 638 with CODE (CL0), Raise/lower rear pneumatic suspension

	Connection and use of test equipment		AD00.00-S-1000AZ
	Electronic level adjustment (ELA) diagnosis previous knowledge		AD32.33-S-2001A
	Only disconnect control module connectors with ignition switched off		PE32.00-S-1100A
	Cables, plugs and connections are taken into consideration when testing using the HHT. If a fault is displayed, they may have to be tested separately for an open circuit, good contact and proper connection as per the respective valid wiring diagram. Static testing is often inadequate because lead vibration, engine at idling speed etc. can only be tested dynamically.
	Electric wiring diagrams		PE32.00-S-1100A
	Electronic level adjustment (ELA) component arrangement		GF32.33-S-0001-02A
a	Battery voltage 11-14 volts	All consumers switched on with engine running and charge monitoring lamp off.
b	Complete ELA system (all connectors connected)
c	HHT connected to diagnosis socket
d	In order to protect the vehicle battery, service mode should be activated when working on the pneumatic suspension.
	Testing
1	ELA electrical system testing, ELA control module		AD32.33-S-6000-01A
2	ELA electrical system testing, starter operation signal		AD32.33-S-6000-02A
3	ELA electrical system testing, D+ signal		AD32.33-S-6000-03A
4	ELA electrical system testing, stop lamp signal		AD32.33-S-6000-04A
5	ELA electrical system testing, service mode		AD32.33-S-6000-05A
6	ELA electrical system testing, door contact signal		AD32.33-S-6000-06A
7	ELA electrical system testing, raise/lower pneumatic spring switch		AD32.33-S-6000-17A
8	ELA electrical system testing, ELA warning lamp		AD32.33-S-6000-09A
9	ELA electrical system testing, speed signal		AD32.33-S-6000-10A
10	ELA electrical system testing, barometric pressure sensor		AD32.33-S-6000-11A
11	ELA electrical system testing, right transverse shutoff valve		AD32.33-S-6000-12A
12	ELA electrical system testing, left transverse shutoff valve		AD32.33-S-6000-13A
13	ELA electrical system testing, outlet valve		AD32.33-S-6000-14A
14	ELA electrical system testing, compressor relay		AD32.33-S-6000-15A
15	ELA electrical system testing, compressor		AD32.33-S-6000-16A

Referenced documents

ad0000s1000az Connection and use of testing equipment
ad3233s2001a Diagnosis previous knowledge, electronic level adjustment (ELA)
ad3233s600001a ELA electrical system testing, ELA control module
ad3233s600002a ELA electrical system testing, starter operation signal
ad3233s600003a ELA electrical system testing, D+ signal
ad3233s600004a ELA electrical system testing, stop lamp signal
ad3233s600005a ELA electrical system testing, service mode
ad3233s600006a ELA electrical system testing, door contact signal
ad3233s600009a ELA electrical system testing, ELA warning lamp
ad3233s600010a ELA electrical system testing, speed signal
ad3233s600011a ELA electrical system testing, barometric pressure sensor
ad3233s600012a ELA electrical system testing, right transverse shutoff valve
ad3233s600013a ELA electrical system testing, left transverse shutoff valve
ad3233s600014a ELA electrical system testing, outlet valve
ad3233s600015a ELA electrical system testing, compressor relay
ad3233s600016a ELA electrical system testing, compressor
ad3233s600017a ELA electrical system testing, pneumatic spring raise/lower switch
gf3233s000102a Electronic level control - (ENR/NR) arrangement of components
pe3200s1100a Survey of electric circuit wiring diagrams suspension