Removal and installation of ASR control unit (N30/1) - RA42001400821X(42-0821)

Operation no. of operation texts and work units or standard texts and flat rates

Models 124 and 129 (without models 124.034/036, 129.067/076)

Fig 1: Identifying ASR Control Unit Components - Models 124

Fig 2: Identifying ASR Control Unit Components - Models 129

Models 124.034/036, 129.067/076 and 140

Fig 3: Identifying Cover Module Box

Fig 4: Identifying Special Tools

Fig 5: Identifying ABS Control Unit

Fig 6: Identifying Special Tools

Ignition	OFF .
Cover of module box (F23)	remove, install.
ASR control unit (N30/1)	withdraw/press in using special tool 140 589 01 33 00.
Diagnosis - fault memory or test program	perform and erase faults (refer to Diagnosis Manual - Chassis).

Special tool

Fig 7: Identifying Special Tools (140 589 01 33 00 07)

Model 126

Fig 8: Identifying ABS Control Unit - Model 126

Fig 9: Identifying Locking Device And Plug - Model 126

Ignition	OFF .
Locking device (22)	operate and detach plug (21) from ASR control unit (N30/1). If the plug (21) is plugged into the ASR control unit (N30/1), ensure that it engages audibly in the locking device (22).
ASR control unit (N30/1)	remove from bracket, install.
Test program	perform (42-0822) .

Model 201

Fig 10: Identifying ABS Control Unit And Battery - Model 201

Fig 11: Identifying Fixing Plate And Screws

Ignition	OFF .
Battery (2)	remove, install.
Locking device	operate and disconnect plug (21) from ASR control unit (N30/1) If the plug (21) is plugged into the ASR control unit (N30/1), ensure that it engages audibly in the locking device.
Screws (3a)	unscrew, screw in.
ASR control unit (N30/1) with fixing plate (3)	remove, install.
Fixing screws (3b)	unscrew, screw in.
ASR control unit (N30/1)	remove from fixing plate (3), attach.
Test program	perform (42-0822) .