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In automotive electronics, electronic control unit (ECU) is a generic term for any embedded system that controls one or more of the electrical systems or subsystems in a motor vehicle. Other terms for ECU include Electronic/Engine Control Module (ECM), Powertrain Control Module (PCM), Transmission Control Module (TCM), Brake Control Module (BCM or EBCM), Central Control Module (CCM)

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In automotive electronics, electronic control unit (ECU) is a generic term for any embedded system that controls one or more of the electrical systems or subsystems in a motor vehicle. Other terms for ECU include Electronic/Engine Control Module (ECM), Powertrain Control Module (PCM), Transmission Control Module (TCM), Brake Control Module (BCM or EBCM), Central Control Module (CCM), Cental Timing Module (CTM), General Electronic Module (GEM), Body Control Module (BCM), Suspension Control Module (SCM), control unit, or control module. Taken together, these systems are sometimes referred to as the car's computer. (Technically there is no single computer but multiple ones.) Sometimes one assembly incorporates several of the individual control modules (PCM is often both engine and transmission) Some modern motor vehicles have up to 80 ECUs. Embedded software in ECUs continue to increase in line count, complexity, and sophistication.[1] Managing the increasing complexity and number of ECUs in a vehicle has become a key challenge for original equipment manufacturers (OEMs).

Types of electronic control units

  • Airbag Control Unit (ACU)
  • Body Control Module controls door locks, electric windows, courtesy lights, etc.
  • Convenience Control Unit (CCU)
  • Door Control Unit
  • Engine Control Unit (ECU)_not to be confused with electronic control unit, the generic term for all these devices
  • Electric Power Steering Control Unit (PSCU)-Generally this will be integrated into the EPS powerpack.
  • Man Machine Interface (MMI)
  • Powertrain Control Module (PCM): Sometimes the functions of the Engine Control Unit and Transmission Control Unit are combined into a single unit called the Powertrain Control Module.
  • Seat Control Unit
  • Speed Control Unit
  • Telephone Control Unit (TCU)
  • Transmission Control Unit (TCU)

    • All GEO Computers quality rebuilt by professionals

    Engine Computers For GEO
    AC Delco OEM # Cardone #   AC Delco OEM # Cardone #  AC Delco OEM # Cardone #
    33900-62810 A1-72-8000   33920-62GL0 A1-72-80178   33920-71E80 A1-72-8064
    33900-63830 A1-72-8001   33920-63810 A1-72-8025   33920-71E81 A1-72-8294
    33920-50GN0 A1-72-80144   33920-63820 A1-72-8026   33920-71EA0 A1-72-8065
    33920-50GP0 A1-72-80145   33920-63830 A1-72-8027   33920-71EA1 A1-77-8730
    33920-51G51 A1-77-5863   33920-63A10 A1-72-8028   33920-71EB0 A1-72-8066
    33920-51G52 A1-72-8003   33920-63B13 A1-72-8029   33920-71EB1 A1-72-8295
    33920-51G60 A1-77-3141   33920-63B24 A1-72-8031   33920-71EC0 A1-72-8067
    33920-51G61 A1-77-7412   33920-63B30 A1-72-8030   33920-71EC1 A1-77-8732
    33920-51G71 A1-77-7397   33920-63B50 A1-72-8031   33920-71EK0 A1-72-80149
    33920-51G72 A1-77-7413   33920-63B60 A1-72-8032   33920-71EL0 A1-72-80150
    33920-51GA0 A1-77-9838   33920-63B73 A1-72-8033   33920-71ES0 A1-72-80151
    33920-51GB0 A1-77-6372   33920-63B84 A1-72-8034   33920-71EU0 A1-72-80152
    33920-51GC0 A1-77-6426   33920-63B90 A1-72-8035   33920-72E00 A1-77-9014
    33920-51GJ0 A1-72-8012   33920-63E12 A1-72-8025   33920-72E10 A1-72-9186
    33920-51GK0 A1-72-8013   33920-63E12 A1-72-8036   33920-72E20 A1-77-9015
    33920-51GN0 A1-77-8486   33920-63E22 A1-72-8024   33920-72E30 A1-77-9094
    33920-51GR0 A1-77-8571   33920-63E22 A1-72-8037   33920-72E40 A1-72-80153
    33920-52D02 A1-72-80077   33920-63E22 A1-72-8038   33920-72E50 A1-72-80154
    33920-52D02REM A1-72-80077   33920-63E23 A1-72-8038   33920-72E60 A1-72-80155
    33920-52DB1 A1-72-80130   33920-63E30 A1-72-8026   33920-72E80 A1-72-80171
    33920-52DC1 A1-72-80131   33920-63E30 A1-72-8039   33920-72EJ0 A1-72-80172
    33920-52G00 A1-72-80165   33920-63E40 A1-72-8040   33920-77E40 A1-72-8068
    33920-52G11 A1-72-80166   33920-63E40 A1-72-8041   33920-77E41 A1-72-8296
    33920-52G20 A1-72-80167   33920-63E41 A1-72-8041   33920-77E50 A1-72-8069
    33920-52G30 A1-72-80168   33920-63E50 A1-72-8027   33920-77E51 A1-72-8297
    33920-52G40 A1-72-80100   33920-63E50 A1-72-8042   33920-77E60 A1-72-8070
    33920-52G50 A1-72-80101   33920-63E60 A1-72-8043   33920-77E61 A1-72-8298
    33920-52G60 A1-72-8028   33920-63E60 A1-72-8044   33920-77E70 A1-72-8071
    33920-52G80 A1-72-80116   33920-63E62 A1-72-8044   33920-77E71 A1-72-8299
    33920-52G90 A1-72-80117   33920-64B12 A1-72-8045   33920-77EJ0 A1-72-80156
    33920-52GA0 A1-77-8952   33920-64B22 A1-72-8046   33920-77EL0 A1-72-80157
    33920-52GB1 A1-77-9537   33920-64B22 A1-72-8047   33920-77EM0 A1-72-80158
    33920-52GC0 A1-77-8954   33920-64B24 A1-72-8047   33920-77EP0 A1-72-8300
    33920-52GD1 A1-77-9538   33920-64B32 A1-72-8048   33920-77EQ0 A1-72-8302
    33920-52GK1 A1-72-9627   33920-64B42 A1-72-8049   33920-77ER0 A1-72-8301
    33920-52GN0 A1-77-9175   33920-64B42 A1-72-8050   33920-77ES0 A1-72-8303
    33920-52GS0 A1-77-9579   33920-64B44 A1-72-8050   33920-78E21 A1-77-8754
    33920-52J60 A1-72-80132   33920-64E00 A1-72-8051   33920-78E40 A1-72-80173
    33920-52J70 A1-72-80133   33920-64E00 A1-72-8052   33920-78E60 A1-72-80174
    33920-52JH0 A1-72-80137   33920-64E01 A1-72-8052   33920-78E70 A1-72-80175
    33920-52JJ0 A1-72-80138   33920-64E10 A1-72-8053   33920-79E00 A1-72-8072
    33920-52JM0 A1-72-80141   33920-64E11 A1-72-8054   33920-79E01 A1-72-8356
    33920-52JN0 A1-72-80142   33920-64E50 A1-72-8055   33920-79E10 A1-72-8073
    33920-54E10 A1-72-8054   33920-65D25 A1-72-80179   33920-79E11 A1-72-8357
    33920-54GN0 A1-72-80129   33920-65D30 A1-72-80180   33920-79E20 A1-72-8074
    33920-54GQ0 A1-72-80128   33920-65D45 A1-72-80061   33920-79E21 A1-72-8358
    33920-54J00 A1-72-80134   33920-65D45 A1-72-80181   33920-79E30 A1-72-8075
    33920-54J10 A1-72-80135   33920-65D47 A1-72-80061   33920-79E31 A1-72-8359
    33920-54J11REM A1-72-80136   33920-65D47REM A1-72-80061   33920-79E70 A1-72-8076
    33920-54JE1 A1-72-80139   33920-65GG0 A1-72-80182   33920-79E71 A1-72-8360
    33920-54JE1REM A1-72-80139   33920-65GJ0 A1-72-80183   33920-79E80 A1-72-80159
    33920-54JF0 A1-72-80140   33920-65GK0 A1-72-80184   33920-79EA0 A1-72-80160
    33920-56B10 A1-77-5003   33920-66D20 A1-72-80185   33920-79EB0 A1-72-80161
    33920-56B30 A1-77-4366   33920-66D21 A1-72-80186   33920-79EC0 A1-72-80162
    33920-56B40 A1-77-4367   33920-66D30 A1-72-80187   33920-79ED0 A1-72-80163
    33920-56B50 A1-77-5000   33920-66D31 A1-72-80188   33920-79EE0 A1-72-80164
    33920-56B51 A1-77-5360   33920-66D41 A1-72-80189   33920-79EF0 A1-72-80176
    33920-56B60 A1-77-5001   33920-66D50 A1-72-80190   33920-79EG0 A1-72-80177
    33920-56B60 A1-77-5002   33920-66D51 A1-72-80191   33920-80C30 A1-72-8077
    33920-56B61 A1-72-8113   33920-66D52REM A1-72-80192   33920-83020 A1-72-8079
    33920-58B00 A1-77-5002   33920-66DH0 XBO A1-72-80118   33920-83021 A1-72-8079
    33920-58B10 A1-77-5003   33920-66DJ0 XBO A1-72-80119   33920-83021 A1-72-8080
    33920-58B20 A1-77-5004   33920-66E10 A1-72-8056   33920-83022 A1-72-8080
    33920-58B30 A1-72-8107   33920-66E20 A1-72-8057   33920-83022 A1-72-8089
    33920-58B40 A1-72-8108   33920-66E50 A1-72-8058   33920-83023 A1-72-8089
    33920-58B50 A1-77-5007   33920-66E60 A1-72-8059   33920-85Z03 A1-72-8126
    33920-58B60 A1-77-5008   33920-67D20 A1-72-80102   33921-54J30 A1-72-80143
    33920-58B90 A1-72-8111   33920-67D30 A1-72-80103   33921-54J30REM A1-72-80143
    33920-59B30 A1-72-8112   33920-67D40 A1-72-80193   33921-65D20 A1-72-80108
    33920-60A32 A1-72-8106   33920-67D42 A1-72-80194   33921-65D22 A1-72-80062
    33920-60A41 A1-77-5012   33920-67D44 A1-72-80195   33921-65D22REM A1-72-80062
    33920-60A42 A1-77-3951   33920-67DS0 A1-72-80120   33921-65D30 A1-72-80109
    33920-60G61 A1-72-8014   33920-67DU0 A1-72-80121   33921-65D40 A1-72-80110
    33920-61G00 A1-72-8015   33920-69GG0 A1-72-80104   33921-65D50 A1-72-80111
    33920-61G10 A1-72-8016   33920-69GH0 A1-72-80105   33921-65DJ0 XBO A1-72-80123
    33920-61G20 A1-72-8017   33920-69GL0 A1-72-80122   33921-65DJ2 A1-72-80124
    33920-61G30 A1-72-8018   33920-69GP0 A1-72-80106   33921-65DJ2 REM A1-72-80124
    33920-61G40 A1-72-80146   33920-69GQ0 A1-72-80107   33921-65DK0 XBO A1-72-80125
    33920-61G60 A1-72-80147   33920-70EB0 A1-72-8110   33921-65DK2 A1-72-80126
    33920-61G70 A1-72-80148   33920-70EC0 A1-77-5015   33921-65DK2 REM A1-72-80126
    33920-61GF0 A1-72-80169   33920-70ED0 A1-77-5016   33921-65DL0 XBO A1-72-80127
    33920-61GG0 A1-72-80170   33920-71E00 A1-72-8060   33921-65DL2 A1-72-80074
    33920-62810 A1-72-8019   33920-71E01 A1-72-8292   33921-65DL2REM A1-72-80074
    33920-62B10 A1-72-8020   33920-71E10 A1-72-8061   33921-66D20 A1-72-80112
    33920-62B70 A1-72-8021   33920-71E11 A1-72-8114   33921-66D30 A1-72-80113
    33920-62E12 A1-72-8019   33920-71E20 A1-72-8062   33921-66D40 A1-72-80114
    33920-62E12 A1-72-8022   33920-71E21 A1-77-8735   33921-66D50 A1-72-80115
    33920-62E22 A1-72-8023   33920-71E30 A1-72-8063   33921-66D51 A1-72-80072
    33920-62E24 A1-72-8024   33920-71E31 A1-72-8293   33921-66D51REM A1-72-80072
    We stock a complete line of Remanufactured GEO Engine Computers,Including ECU,ECM,TCM,PCM