Test Steps - Section 32

Preparation For Test:
1. Connect reservoir with vacuum Y-distributor to vacuum/pressure tester.
2. Provide access to PSE control module (A37, A37/1) and disconnect PSE pneumatic multiple connector (do not disconnect electrical wiring harness).
3. Connect vacuum/pressure tester with reservoir to PSE control module (A37, A37/1).


NOTES:
1. Before testing the safety switch time of the consumers, as well as between the tests for P + (pressure) and P - (vacuum), interrupt the PSE control module power supply for at least 3 seconds.
2. After testing of the PSE control module, disconnect the power for approx. 3 seconds (to erase DTC memory and safety memory).
3. After completing the PSE control module test, do not operate any system which would require vacuum or pressure supply for approx. 10 minutes.







Special Tools


Preliminary work:
Diagnosis Diagnostic Trouble Code (DTC) Memory Function Test







Figure 1
ZV Central locking (CL)
RH Backup assist (BA)
SFG Retractable trunk lid grip (RTG)
FKS Rear head restraint retraction (RHR)
P + Pressure connection
P - Vacuum connection

Preparation For Test:
1. Check fuse F2-5, F4-3 and fuse F4-11.
2. Battery voltage 11 - 14 V.
3. Provide access to PSE control module (A37, A37/1 )
4. Disconnect pneumatic multiple connector from PSE control module (A37, A37/1).

Parts Required for Test:
1 Reservoir 107 800 08 19
1 Vacuum Y-distributor 017 078 01 45
5 Cap 000 987 29 45








Test Step 1.0 & 2.0







Test Step 3.0, 4.0 & 5.0








Test Step 6.0, 7.0 & 8.0








Test Step 9.0, 10.0 & 11.0








Test Step 12.0 & 13.0