ad3233l600028b

ENR test of electrical system front solenoid valve

Type ad · topic 32.33 · version 0100 · 2003-06-10

Applies to: MODEL 668.3, 670.3 with CODE (CE2) Air suspension at rear with CODE (CE3) Air suspension at front and rear Elektronische Niveauregelung (ENR)

Where it sits

Function group 2 Chassis › 32 Suspension › 32.33 Ground clearance compensator (NR/ENR) — Series 668 (models 3**) · Series 670 (models 3**)

EinPAS 20 Chassis › 20.20 Level control › 20.20.1 Basic information — Series 668 (models 3**) · Series 670 (models 3**)

AD32.33-L-6000-28B

ENR test of electrical system front solenoid valve

With fault code

Scope of test

Measuring instrument/

Test connection

Operation/Requirement

Specified value

Possible cause/Remedy

1.0

FA solenoid valve

–//–, +

Open-circuit between pin 10 and 14

With fault code 123

1

Y11

2

Ignition: On

Disconnect connector on front axle ENR solenoid valve (Y11)

Fault code

Fault code

Replace front axle ENR solenoid valve (Y11)

Carry out visual inspection connectors.

If no fault can be found

1.1

1.1

FA solenoid valve

–//–, +

Open-circuit between pin 10 and 14

Y11

2

1

Ignition: On

Disconnect connector on front axle ENR solenoid valve (Y11)

Fault code

Fault code

Ground cable to vehicle frame defective

1.2

1.2

FA solenoid valve

–//–, +

Open-circuit between pin 10 and 14

X37

1

Ignition: On

Do not disconnect connector X37

Fault code

Fault code

Green/yellow/black cable in wiring harness to front axle ENR solenoid valve (Y11) defective

Green/yellow/black cable in wiring harness to ENR control unit (A6) defective