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Home >> Mercedes Benz >> 2002 >> SLK230 Automatic >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Anti-Theft & Central Locking System -- 170 Chassis >> Self-Diagnostic System >> Central locking (CL), diagnosis, function check - AD80.20-P-3001A

Central locking (CL), diagnosis, function check - AD80.20-P-3001A

MODEL 129 as of 1.6.97 

MODEL 140 as of 1.6.97 

MODEL 170 with CODE (491) USA version with CODE (498) Japanese version 

MODEL 170 as of 1.6.97 

  Central locking (CL) diagnosis, advanced information   AD80.20-P-2001A 
IMPORTANT Radio frequency/infrared remote control in order    
IMPORTANT Vehicle unlocked    
IMPORTANT All doors and trunk lid closed    
IMPORTANT Side windows open    
IMPORTANT Battery voltage 11-14 V    
INSPECT Fuses in order    
  Function check     
Test step/Scope of test  Operation/Requirement  Specified value  Possible cause/Remedy 
Lock vehicle with transmitter key All doors, trunk lid and fuel tank flap lock in 3 ≤ seconds Vehicle does not lock and pump motor of PSE control module (combined)
Locking vehicle with remote control via radio antenna or receivers in the doors      
    Model 129: (A37) does not start up:
    Interior central locking locked Pneumatic system equipment variant coding incorrect
AD80.20-P-2000-08A 
PSE control module
(combined) (A37)
Vehicle does not lock or only in part, even though pump motor of PSE control module (combined) (A37) runs:
AD80.35-P-3000A 
AD80.20-P-8001-01B 
AD80.20-P-8000-01A 
AD80.20-P-8000-03A 
AD80.20-P-8000-05A 
AD80.20-P-8000-07A 
Preselected function "Selective unlocking". Unlock vehicle with transmitter key. Driver's door and fuel tank flap unlock in 3 ≤ seconds. Vehicle does not unlock and pump motor of PSE control module (combined)
Unlocking vehicle "selectively" with remote control via radio antenna or receivers in the doors      
    Model 129: (A37) does not start up:
    Interior central locking unlocks. Cables
PSE variant coding incorrect
AD80.20-P-2000-08A 
PSE control module (combined) (A37)
Vehicle does not unlock or only in part, even though PSE (A37, A37/1) runs:
AD80.20-P-6001-01A 
AD80.35-P-3000A 
AD80.20-P-8001-01B 
AD80.20-P-8001-04B 
AD80.20-P-8000-01A 
AD80.20-P-8000-05A 
Preselected function "Global unlocking". Unlock vehicle with transmitter key. All doors, trunk lid and fuel tank flap unlock in ≤ 3 seconds. Vehicle does not unlock and pump motor of PSE control module (combined)
Unlocking vehicle "globally" with remote control via radio antenna or IR receivers in the doors      
    Model 129: (A37) does not start up:
    Interior central locking unlocks. Cables
PSE variant coding incorrect
AD80.20-P-2000-08A 
Vehicle does not unlock or only in part, even though pump motor of PSE control module (combined) (A37) runs:
AD80.20-P-6001-01A 
AD80.35-P-3000A 
AD80.20-P-8001-01B 
AD80.20-P-8001-02B 
AD80.20-P-8001-03B
AD80.20-P-8001-04B 
AD80.20-P-8000-01A 
AD80.20-P-8000-03A 
AD80.20-P-8000-05A 
AD80.20-P-8000-07A 
Vehicle unlocks with remote control. All doors and trunk lid lock in ≤ 3 seconds. Vehicle does not lock and pump motor of PSE control module (combined)
(A37) does not start up:
PSE variant coding incorrect
AD80.20-P-2000-08A 
Cables
PSE control module (combined) (A37)
Vehicle does not lock or only in part, even though pump motor of PSE control module (combined) (A37) runs:
AD80.20-P-6001-01A 
AD80.20-P-6001-01B
AD80.20-P-6001-01C
AD80.20-P-8001-01A 
AD80.20-P-8001-02A 
AD80.20-P-8001-03A
AD80.20-P-8000-01B 
AD80.20-P-8000-03B 
AD80.20-P-8000-05B 
Locking vehicle via the interior switch (CL) Press interior switch (CL) towards locking. Fuel tank flap does not lock.
Press interior switch (CL) towards unlocking. All doors and trunk lid unlock in ≤ 3 seconds. Vehicle does not unlock and pump motor of PSE control module (combined)
(A37) does not start up:
PSE variant coding incorrect
AD80.20-P-2000-08A 
Cables
PSE control module (combined) (A37)
Vehicle does not unlock or only in part, even though pump motor of PSE control module (combined) (A37) runs:
AD80.20-P-6001-01A 
AD80.20-P-6001-01B
AD80.20-P-6001-01C
AD80.20-P-8001-01A 
AD80.20-P-8001-02A 
AD80.20-P-8001-03A
AD80.20-P-8000-01B 
AD80.20-P-8000-03B 
AD80.20-P-8000-05B 
Unlocking vehicle via the interior switch (CL)    
Preselected position "Selective unlocking"  Door, which is unlocked via the interior door handle, unlocks. Vehicle unlocks at all doors and pump motor of PSE control module (combined) (A37) runs:
Unlocking vehicle by unlocking a front door Vehicle locked via interior switch (CL).
Unlocking a front door via handle in the door trim.
   
      Transmitter key PSE control module (combined) (A37)
Preselected position "Global unlocking"  . All doors and trunk lid unlock in ≤ 3 seconds. Vehicle does not unlock and pump motor of PSE control module (combined)
(A37) does not start up:
PSE variant coding incorrect
AD80.20-P-2000-08A 
Cables
PSE control module (combined) (A37)
Vehicle does not unlock or only in part, even though pump motor of PSE control module (combined) (A37) runs
AD80.20-P-6001-08A 
AD80.20-P-6001-08B 
AD80.20-P-8001-01A 
AD80.20-P-8001-02A 
AD80.20-P-8001-03A
AD80.20-P-8000-01B 
AD80.20-P-8000-03B 
AD80.20-P-8000-05B 
Unlocking the vehicle by unlocking a front door Vehicle locks via the interior switch (CL).
Unlocking a front door via handle in the door trim.
 
Turn key in driver's door lock or trunk lock towards unlocking. All doors, trunk lid and fuel tank flap unlock in ≤ 3 seconds. Vehicle does not unlock and pump motor of PSE control module (combined)
(A37) does not start up:
Cables
PSE control module (combined) (A37)
Vehicle does not unlock or only in part, even though pump motor of PSE control module (combined) (A37) runs:
AD80.35-P-6000-14A 
AD80.35-P-6000-15A 
AD80.20-P-8001-01A 
AD80.20-P-8001-02A 
AD80.20-P-8001-03A
AD80.20-P-8001-04A 
AD80.20-P-8000-01B 
AD80.20-P-8000-03B 
AD80.20-P-8000-05B 
AD80.20-P-8000-07B 
Unlocking vehicle via driver's door or trunk lock cylinder (USA ONLYJAPAN ONLY only)    
Turn key in driver's door lock or trunk lock towards locking. All doors, trunk lid and fuel tank flap lock in ≤ 3 seconds. Vehicle does not lock and pump motor of PSE control module (combined)
(A37) does not start up:
Cables
PSE control module (combined) (A37)
Vehicle does not lock or only in part, even though pump motor of PSE control module (combined) (A37) runs:
AD80.35-P-6000-14A 
AD80.35-P-6000-15A 
AD80.20-P-8001-01B 
AD80.20-P-8001-02B 
AD80.20-P-8001-03B
AD80.20-P-8001-04B 
AD80.20-P-8000-01A 
AD80.20-P-8000-03A 
AD80.20-P-8000-05A 
AD80.20-P-8000-07A 
Locking vehicle via driver's door or trunk lock cylinder (USA ONLYJAPAN ONLY ) only    
10  Remove ignition key. Wait for > 40 seconds. Vehicle does not lock and pump motor of PSE control module (combined)
(A37) does not start up:
PSE variant coding incorrect
AD80.20-P-2000-08A 
Cables
PSE control module (combined) (A37)
Vehicle does not lock or only in part, even though pump motor of PSE control module (combined) (A37) runs:
AD80.20-P-6001-08A 
AD80.20-P-6001-08B 
AD80.20-P-6001-10A
AD80.20-P-6001-10B
AD80.20-P-8001-01B 
AD80.20-P-8001-02B 
AD80.20-P-8001-03B
AD80.20-P-8001-04B 
AD80.20-P-8000-01A 
AD80.20-P-8000-03A 
AD80.20-P-8000-05A 
AD80.20-P-8000-07A 
Re-locking vehicle via central locking Lock vehicle via remote control.
Unlock vehicle via remote control.
Do not open any door within 40 seconds.
Do not operate interior switch (CL).
All doors, trunk lid and fuel tank flap lock.
11  Drive vehicle at a speed of > 15 km/h   Vehicle does not lock and pump motor of PSE control module (combined)
(A37) does not start up:
PSE variant coding incorrect
AD80.20-P-2000-08A 
Cables
PSE control module (combined) (A37)
Vehicle does not lock or only in part, even though pump motor of PSE control module (combined) (A37) runs:
AD80.20-P-6001-12A
AD80.20-P-8001-01A 
AD80.20-P-8001-02A 
AD80.20-P-8001-03A
AD80.20-P-8000-01B 
AD80.20-P-8000-03B 
AD80.20-P-8000-05B 
Locking vehicle automatically via central locking   All doors and trunk lid lock
  IMPORTANT The "Automatic locking" function must not have been deactivated with the interior central locking switch (S6s1)  or with the HHT. Fuel tank flap does not lock