Pneumatic System Equipment (PSE)

NOTE: Ensure fuses for PSE control module are not blown, voltage supply to all related control module is okay and CAN data lines are not damaged. See WIRING DIAGRAMS .

Using Adapter Harness (965 589 00 40 00), connect Hand Held Tester (965 589 00 01 00) to data link connector. Unlock vehicle using remote transmitter. Turn ignition switch to RUN position. Enter function tests mode. Enter function test that is to be performed. After entering appropriate function test, perform appropriate test condition, observe tester value. If tester value is not as specified, go to appropriate system tests. See FUNCTION TEST (PNEUMATIC SYSTEM EQUIPMENT CONTROL MODULE) table. See SYSTEM TESTS .

FUNCTION TEST (PNEUMATIC SYSTEM EQUIPMENT CONTROL MODULE)

Function Test No.

Test Condition

Tester Value

Test/Remedy

Remote Transmitter Lock Button Pressed

⁽¹⁾

Remote Transmitter Lock Button Not Pressed

OFF

⁽¹⁾

Remote Transmitter Unlock Button Pressed

⁽¹⁾

Remote Transmitter Unlock Button Not Pressed

OFF

⁽¹⁾

3 ⁽²⁾

Trunk Lid Open

⁽³⁾

Trunk Lid Closed

OFF

⁽³⁾

Interior Central Locking Switch Pressed (Locked)

⁽⁴⁾

Interior Central Locking Switch Not Pressed (Locked)

OFF

⁽⁴⁾

Interior Central Locking Switch Pressed (Unlocked)

⁽⁴⁾

Interior Central Locking Switch Not Pressed (Unlocked)

OFF

⁽⁴⁾

6 ⁽²⁾

Driver's Or Passenger's Door Open

⁽⁵⁾

Driver's & Passenger's Door Closed

OFF

⁽⁵⁾

7 ⁽²⁾

Left Or Right Rear Door Open

⁽⁵⁾

Left & Right Rear Door Closed

⁽⁵⁾

8 ⁽⁶⁾

Driver's Door Open

⁽⁷⁾

Driver's Door Closed

OFF

⁽⁷⁾

9 ⁽⁶⁾

Passenger's Door Open

⁽⁸⁾

Passenger's Door Closed

OFF

⁽⁸⁾

Rear Headrest Retraction Switch Pressed

⁽⁹⁾

Rear Headrest Retraction Switch Pressed

OFF

⁽⁹⁾

11 ⁽²⁾

Ignition Switch In RUN Position

⁽¹⁰⁾

Ignition Switch In LOCK Position

OFF

⁽¹⁰⁾

Remote Trunk Release Switch Pressed

⁽¹¹⁾

Remote Trunk Release Switch Not Pressed

OFF

⁽¹¹⁾

⁽¹⁾	Repair keyless entry system. See KEYLESS ENTRY SYSTEMS article.

⁽²⁾	Only applies to CL500, S320, S420 and S500.

⁽³⁾	Perform pneumatic system TEST 7: TRUNK LID SWITCH CIRCUIT. See PNEUMATIC SYSTEM EQUIPMENT (PSE) under SYSTEM TESTS .

⁽⁴⁾	Perform central locking system TEST 2: INTERIOR CENTRAL LOCKING SWITCH (CL500, S320, S420, S500). See CENTRAL LOCKING under SYSTEM TESTS .

⁽⁵⁾	Perform central locking system TEST 3: INTERIOR CENTRAL LOCKING SWITCH (SL500). See CENTRAL LOCKING under SYSTEM TESTS .

⁽⁶⁾	Only applies to SLK230.

⁽⁷⁾	Perform central locking system TEST 4: INTERIOR CENTRAL LOCKING SWITCH (SL500). See CENTRAL LOCKING under SYSTEM TESTS .

⁽⁸⁾	Perform central locking system TEST 5: FRONT DOOR LOCK SWITCH ACTIVATION (SL500). See CENTRAL LOCKING under SYSTEM TESTS .

⁽⁹⁾	Perform retractable rear headrest system TEST 1: RETRACTABLE REAR HEADREST UNLOCKING CIRCUIT. See RETRACTABLE REAR HEADREST under SYSTEM TESTS .

⁽¹⁰⁾	Perform pneumatic system TEST 2: PSE CONTROL MODULE VOLTAGE SUPPLY (CIRCUIT 15). See PNEUMATIC SYSTEM EQUIPMENT (PSE) under SYSTEM TESTS .

⁽¹¹⁾	Perform remote trunk release system TEST 1: REMOTE TRUNK RELEASE SWITCH TEST. See REMOTE TRUNK RELEASE under SYSTEM TESTS .