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Self-Diagnostic System

Connect Hand-Held Tester (965 589 00 01 00) to data link connector. Following manufacturer's instructions, retrieve codes from PSE control module. Record DTCs and go to appropriate test procedure. See DTC IDENTIFICATION CHART (PNEUMATIC SYSTEM EQUIPMENT CONTROL MODULE) table.

DTC IDENTIFICATION CHART (SL500)

DTC Cause Test/Remedy
012 Driver's Door Safety Switch Time Exceeded (1)
013 Fuel Door Safety Switch Time Exceeded (2)
014 Passenger's Door Safety Switch Time Exceeded (3)
(1) Perform pneumatic system vacuum TEST 1 and TEST 2. See PNEUMATIC SYSTEM EQUIPMENT under VACUUM SYSTEM TESTS . Also, perform central locking vacuum TEST 1 and TEST 2. See CENTRAL LOCKING under VACUUM SYSTEM TESTS .
(2) Perform pneumatic system vacuum TEST 7 and TEST 8. See PNEUMATIC SYSTEM EQUIPMENT under VACUUM SYSTEM TESTS . Also, perform central locking vacuum TEST 1 and TEST 2. See CENTRAL LOCKING under VACUUM SYSTEM TESTS .
(3) Perform pneumatic system vacuum TEST 3 and TEST 4. See PNEUMATIC SYSTEM EQUIPMENT under VACUUM SYSTEM TESTS . Also, perform central locking vacuum TEST 1 and TEST 2. See CENTRAL LOCKING under VACUUM SYSTEM TESTS .
DTC IDENTIFICATION CHART (CL500, S320, S420 & S500)

DTC Cause Test/Remedy
002 Central Locking System Air Demand Too High (1)
003 Retractable Trunk Lid Grip System Air Demand Too High (2)
004 Retractable Rear Headrest/ Remote Trunk Release Air Demand Too High (3)
005 Orthopedic Seat Air Demand Too High (4)
006 Manifold Vacuum Assist Air Demand Too High (4)
007 Lock Switch Circuit One Resistance Too High (5)
008 Lock Switch Circuit 2 Resistance Too High (5)
009 Retractable Rear Headrest Switch Resistance Too High (6)
010 Interior Central Locking Switch Resistance Too High (7)
011 Driver's Door Pin Switch Resistance Too High (8)
012 Remote Trunk Release Switch Resistance Too High (9)
013 Trunk Lid Microswitch Resistance Too High (10)
014 Lock Switch Circuit One Signal For More Than 2 Minutes (5)
015 Lock Switch Circuit 2 Signal For More Than 2 Minutes (5)
016 Interior Central Locking Switch Signal For More Than 2 Minutes (7)
017 Retractable Rear Headrest Switch Signal For More Than 2 Minutes (6)
018 Remote Trunk Release Switch Signal For More Than 2 Minutes (9)
(1) Perform central locking vacuum TEST 1, TEST 2, TEST 3 and TEST 4. See CENTRAL LOCKING under VACUUM SYSTEM TESTS .
(2) Perform retractable trunk lid grip vacuum TEST 1 and TEST 2. See RETRACTABLE TRUNK LID GRIP under VACUUM SYSTEM TESTS .
(3) Perform remote trunk release vacuum TEST 1. See REMOTE TRUNK RELEASE under VACUUM SYSTEM TESTS . Also, perform retractable rear headrest vacuum TEST 1. See RETRACTABLE REAR HEADREST under VACUUM SYSTEM TESTS . 4  ) - Perform orthopedic seat vacuum TEST 1 and TEST 2. See ORTHOPEDIC SEAT under VACUUM SYSTEM TESTS .
(4) Perform manifold assist vacuum TEST 1. See MANIFOLD VACUUM ASSIST under VACUUM SYSTEM TESTS .
(5) Perform keyless entry trouble shooting. See TROUBLE SHOOTING in KEYLESS ENTRY SYSTEMS article.
(6) Perform retractable rear headrest system TEST 1. See RETRACTABLE REAR HEADREST under SYSTEM TESTS .
(7) Perform central locking system TEST 2. See CENTRAL LOCKING under SYSTEM TESTS .
(8) Perform pneumatic system TEST 3. See PNEUMATIC SYSTEM EQUIPMENT (PSE) under SYSTEM TESTS .
(9) Perform remote trunk release system TEST 1. See REMOTE TRUNK RELEASE under SYSTEM TESTS .
(10) Perform remote trunk release system TEST 2. See REMOTE TRUNK RELEASE under SYSTEM TESTS .
DTC IDENTIFICATION CHART (SLK230)

DTC Cause Test/Remedy
012 Driver's Door Safety Switch Time Exceeded (1)
013 Fuel Door Safety Switch Time Exceeded (2)
014 Passenger's Door Safety Switch Time Exceeded (3)
B1000 Combination Control Module (CCM) Replace CCM
B1010 Low Voltage (4)
B1011 Excessive Voltage (4)
B1021 No Communication With PSE Control Module (5)
B1024 CAN L Data Line Fault (5)
B1024 CAN H Data Line Fault (5)
B1100 Control Line Between DAS Control Module Combination Control Module Short (6)
B1436 Driver's Door Safety Switch Time Exceeded (1)
B1436 Fuel Door Safety Switch Time Exceeded (2)
B1436 Passenger's Door Safety Switch Time Exceeded (3)
B1729 PSE Control Module Fault Replace PSE Control Module
(1) Perform pneumatic system vacuum TEST 1 and TEST 2. See PNEUMATIC SYSTEM EQUIPMENT under VACUUM SYSTEM TESTS . Also, perform central locking vacuum TEST 1 and TEST 2. See CENTRAL LOCKING under VACUUM SYSTEM TESTS .
(2) Perform pneumatic system vacuum TEST 7 and TEST 8. See PNEUMATIC SYSTEM EQUIPMENT under VACUUM SYSTEM TESTS . Also, perform central locking vacuum TEST 1 and TEST 2. See CENTRAL LOCKING under VACUUM SYSTEM TESTS .
(3) Perform pneumatic system vacuum TEST 3 and TEST 4. See PNEUMATIC SYSTEM EQUIPMENT under VACUUM SYSTEM TESTS . Also, perform central locking vacuum TEST 1 and TEST 2. See CENTRAL LOCKING under VACUUM SYSTEM TESTS .
(4) Information not available from manufacturer at time of publication.
(5) Perform pneumatic system TEST 9 through 15. See PNEUMATIC SYSTEM EQUIPMENT (PSE) under SYSTEM TESTS .
(6) Perform keyless entry trouble shooting. See TROUBLE SHOOTING in KEYLESS ENTRY SYSTEMS article.
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