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Home >> Mercedes Benz >> 1994 >> SL320 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control -- 129 Chassis >> Self-Diagnostic System >> Stationary heater test of electrical system - AD83.70-P-6001 >> Stationary heater test of electrical system circulation pump - AD83.70-P-6001-07B

Stationary heater test of electrical system circulation pump - AD83.70-P-6001-07B

Model 129 as of 01.06.97 

Model 163 as of 01.09.01 

HAND-HELD TESTER Test of Tester/test connection Operation/Requirement Specified value
  • Possible cause/Remedy
1.0 
B 1823
OPEN-CIRCUIT		 Stationary heater control module (A6n1)/connctor (B) circulation pump (A6m1) 
Model 129 as of 01.06.97 
Model 163 as of 01.09.01 		 HAND-HELD TESTER
  • Unplug connector of circulation pump (B)

    AD83.70-P-2001-01A 

    AD83.70-P-2001-01GH 

  • Bridge contacts of connector at control module (A6n1)
  • Erase fault memory HHT/STAR DIAGNOSIS
  • Actuate circulation pump
  • Read out fault memory
 Fault message HHT/STAR DIAGNOSIS  :
Circulation pump A6m1 overload, SHORT-CIRCUIT
Circulation pump A6m1 OPEN-CIRCUIT
  • Circulation pump (A6m1)
  • Stationary heater control module (A6n1)
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