STI Home
Body And Accessories
  Volume 1
Volume 1.1
Volume 2
Volume 2.1
Volume 3
Volume 4
Volume 4.1
Volume 5
Volume 5.1
Volume 6
Chassis & Drivetrain
Engines
Diesel Engines
Info. / Comm.
Climate Control
Diagnostic Manual, Body and Accessories,
Volume 3

 Printable version
LOCATION:    11.2 Roadster Soft Top (RST), Roll Bar (RB) (Manual Deployment)   >   25 Electrical Test Program - Survey of Electrical Valve Actuation


Electrical Test Program - Survey of Electrical Valve Actuation

Y55 Left RST Valve Block
(4 connections)





Figure 1

Y55 Left RST valve block (4 connections)
y6 Soft top "open" valve
y7 Soft top "close" valve
y8 Fabric bow "raise" valve
y9 Fabric bow "lower" valve		  
    P77.39-0272-05

Y56 Right RST Valve Block
(4 connections)
and
Y57 Roll bar Valve Block
(2 connections)

Figure 2

Y56 Left RST valve block (4 connections)
y2 Rear locks valve
y3 Center locks valve
y4 Front locks valve
y5 Soft top compartment cover valve

Y57 Roll Bar valve block (2 connections)
y10 Roll bar "Lower" valve
y11 Roll bar "raise" valve		  
    P77.39-0273-09

Operational Sequence: Soft Top Opening

 Left RST valve block
(Y55)		 Hydraulic unit (A7/5) 1) RB valve block (Y57) Right RST valve block
(Y56)
Valves being controlled at time of operational sequence y6 y7 y8 y9 y1 y10 y11 y4 y2 y3 y5
Connection Diagram - Socket box
X ( 22, Figure 1),
Z ( 22, Figure 3)		 X
10 3		 X
10 4		 X
10 5		 X
10 6		 X
10 8		 X
10 7		 Z
12 8		 Z
12 3		 Z
12 4		 Z
12 5		 Z
12 6
Lower roll bar,
lower side windows		 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V
 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V
Unlock fabric bow 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 11-14 V 0-1 V 0-1 V
Raise fabric bow 0-1 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 11-14 V 0-1 V 0-1 V
Unlock soft top compartment cover 0-1 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 0-1 V
Open soft top compartment cover 0-1 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V
Unlock front of soft top 0-1 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V
Open soft top 11-14 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V
Lower soft top into soft top compartment 11-14 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V
Close soft top compartment cover 11-14 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 0-1 V
Lock soft top compartment cover 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V
Raise roll bar,
raise side windows		 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 0-1 V
                       
1) RST/RB hydraulic unit main valve (A7/5y1) was deleted as of VIN 1F-083891

Operational Sequence: Closing Soft Top

 Left RST valve block
(Y55)		 Hydraulic unit (A7/5) 1) RB valve block (Y57) Right RST valve block
(Y56)
Valves being controlled at time of operational sequence y6 y7 y8 y9 y1 y10 y11 y4 y2 y3 y5
Connection Diagram - Socket box
X ( 22, Figure 3),
Z ( 22, Figure 5)		 X
10 3		 X
10 4		 X
10 5		 X
10 6		 X
10 8		 X
10 7		 Z
12 8		 Z
2 3		 Z
12 4		 Z
12 5		 Z
12 6
Lower roll bar,
lower side windows		 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V
 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V
Unlock soft top compartment cover 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 0-1 V
Open soft top compartment cover 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V
Close soft top 0-1 V 11-14 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V
Close soft top (differential operation) 11-14 V 11-14 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V
Lock front of soft top 0-1 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V
Close soft top compartment cover 0-1 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 11-14 V 0-1 V
Lock soft top compartment cover 0-1 V 0-1 V 11-14 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V
Lower fabric bow 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 11-14 V 0-1 V 0-1 V 11-14 V 0-1 V 0-1 V
Lock fabric bow 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V
Raise roll bar,
raise side windows		 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 0-1 V
1) RST/RB hydraulic unit main valve (A7/5y1) was deleted as of VIN 1F-083891

Operational Sequence: Locking Hardtop

 Left RST valve block
(Y55)		 Hydraulic unit (A7/5) 1)
Valves being controlled at time of operational sequence y6 y7 y8 y9 y1
Connection Diagram - Socket box
X ( 22, Figure 1),
Z ( 22, Figure 3)		 X
10 3		 X
10 4		 X
10 5		 X
10 6		 X
10 8
Rear (lock) 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V
Front (lock) 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V
1) RST/RB hydraulic unit main valve (A7/5y1) was deleted as of VIN 1F-083891.

Operational Sequence: Locking Hardtop

 RB valve block (Y57) Right RST valve block
(Y56)
Valves being controlled at time of operational sequence y10 y11 y4 y2 y3 y5
Connection Diagram - Socket box
X ( 22, Figure 1),
Z ( 22, Figure 3)		 X
10 7		 Z
12 8		 Z
12 3		 Z
12 4		 Z
12 5		 Z
12 6
Rear (lock) (roll bar "lowered") 11-14 V 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V
Rear (lock) (roll bar "raised") 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 0-1 V
Front (lock) (roll bar "lowered") 11-14 V 0-1 V 0-1 V 0-1 V 0-1 V 0-1 V
Front (lock) (roll bar "raised") 11-14 V 11-14 V 0-1 V 0-1 V 0-1 V 0-1 V
1) RST/RB hydraulic unit main valve (A7/5y1) was deleted as of VIN 1F-083891.

Operational Sequence: Unlocking Hardtop

 Left RST valve block
(Y55)		 Hydraulic unit (A7/5) 1) RB valve block (Y57) Right RST valve block
(Y56)
Valves being controlled at time of operational sequence y6 y7 y8 y9 y1 y10 y11 y4 y2 y3 y5
Connection Diagram - Socket box
X ( 22, Figure 1),
Z ( 22, Figure 3)		 X
10 3		 X
10 4		 X
10 5		 X
10 6		 X
10 8		 X
10 7		 Z
12 8		 Z
12 3		 Z
12 4		 Z
12 5		 Z
12 6
Rear (unlock) 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 0-1 V 11-14 V 0-1 V 0-1 V 0-1 V
Front (unlock) 0-1 V 0-1 V 0-1 V 0-1 V 11-14 V 11-14 V 0-1 V 0-1 V 11-14 V 0-1 V 0-1 V
1) RST/RB hydraulic unit main valve (A7/5y1) was deleted as of VIN 1F-083891.



© 2009 Mercedes-Benz USA, LLC