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Home >> Kia >> 2009 >> Optima EX, 2.4 3 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 2.4L >> Powertrain Control Module (Pcm) >> Schematic Diagram >> Powertrain Control Module (PCM)
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Powertrain Control Module (PCM)

  1. PCM harness connector 
    Fig 1: Identifying PCM Harness Connector
    G06361914Courtesy of KIA MOTORS AMERICA, INC.
  2. PCM terminal function 

    Connector [C01-K] 

    PIN DESCRIPTION

    Pin Description Connected to
    1 Power ground Chassis ground
    2 Battery voltage supply after ignition switch Ignition Switch
    3 Power ground Chassis ground
    4 Battery voltage supply after main relay Main Relay
    5 Power ground Chassis ground
    6 Battery voltage supply Battery
    7 Wheel speed sensor (WSS) [+] signal input Wheel speed sensor (WSS)
    8 -  
    9 Fuel level sensor (FLS) signal input Fuel level sensor (FLS)
    10 -  
    11 -  
    12 Knock sensor (KS) signal input Knock sensor (KS)
    13 Sensor ground Accelerator position sensor #2
    14 Sensor ground Engine coolant temperature sensor (ECTS)
    15 Camshaft position sensor (CMPS) #2 signal input Camshaft position sensor (CMPS) #2
    16 -  
    17 Crankshaft position sensor (CKPS) signal input Crankshaft position sensor (CKPS)
    18 VS-/IP- (Common ground for VS, IP) Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
    19 VS+ (Nernst cell voltage) Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
    20 Sensor ground Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
    21 -  
    22 -  
    23 Fuel consumption signal output Trip computer
    24 -  
    25 Injector (Cylinder #1) control output Injector (Cylinder #1)
    26 Injector (Cylinder #3) control output Injector (Cylinder #3)
    27 Injector (Cylinder #4) control output Injector (Cylinder #4)
    28 Injector (Cylinder #2) control output Injector (Cylinder #2)
    29 Wheel speed sensor (WSS) [-] signal input Wheel speed sensor (WSS)
    30 Sensor power (+5V) Manifold absolute pressure sensor (MAPS)
    31 Manifold absolute pressure sensor (MAPS) signal input Manifold absolute pressure sensor (MAPS)
    32 Throttle position sensor (TPS) #2 signal input Throttle position sensor (TPS) #2 [ETC module]
    33 Engine coolant temperature sensor (ECTS) signal input Engine coolant temperature sensor (ECTS)
    34 Sensor ground Knock sensor (KS)
    35 Accelerator Position Sensor (APS) #2 signal input Accelerator Position Sensor (APS) #2
    36 Sensor power (+5V) Accelerator Position Sensor (APS) #2
    37 Sensor ground Camshaft position sensor (CMPS) #2
    38 -  
    39 Sensor ground Crankshaft position sensor (CMPS)
    40 Vehicle speed signal input ABS/VDC control module
    41 -  
    42 RC (Compensated Resistance) Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
    43 Sensor power (+5V) A/C pressure transducer (APT)
    44 -  
    45 -  
    46 -  
    47 -  
    48 -  
    49 -  
    50 Variable intake solenoid valve (VIS) control output Variable intake solenoid valve (VIS)
    51 Battery voltage supply after main relay Main relay
    52 Fuel tank pressure sensor (FTPS) signal input Fuel tank pressure sensor (FTPS)
    53 Intake Air temperature sensor (IATS) signal input Intake Air temperature sensor (IATS)
    54 A/C pressure transducer (APT) signal input A/C pressure transducer (APT)
    55 -  
    56 -  
    57 Sensor ground A/C pressure transducer (APT)
    58 -  
    59 Sensor ground Throttle position sensor (TPS) #1,2 [ETC module]
    60 Sensor power (+5V) Accelerator Position Sensor (APS) #1
    61 Sensor ground Accelerator Position Sensor (APS) #1
    62 Camshaft position sensor (CMPS) #1 signal input Camshaft position sensor (CMPS) #1
    63 Sensor power (+5V) Throttle position sensor (TPS) #1,2 [ETC module]
    64 Main relay control output Main relay
    65 Cooling fan relay [Low] control output Cooling fan relay
    66 CVVT Oil control valve (OCV) #1 control output CVVT Oil control valve (OCV) #1
    67 Purge control solenoid valve (PCSV) control output Purge control solenoid valve (PCSV)
    68 CVVT Oil control valve (OCV) #2 control output CVVT Oil control valve (OCV) #2
    69 Immobilizer lamp control output Immobilizer lamp (Cluster)
    70 Fuel pump relay control output Fuel pump relay
    71 ETC motor [A] control output ETC motor [ETC module]
    72 ETC motor [B] control output ETC motor [ETC module]
    73 Sensor ground Fuel tank pressure sensor (FTPS)
    74 Sensor ground Manifold absolute pressure sensor (MAPS), Intake Air temperature sensor (IATS)
    75 Immobilizer communication line Immobilizer control module
    76 -  
    77 CAN [High] ABS/VDC control module
    78 CAN [Low] ABS/VDC control module
    79 -  
    80 Throttle position sensor (TPS) #1 signal input Throttle position sensor (TPS) #1 [ETC module]
    81 -  
    82 Accelerator Position Sensor (APS) #1 signal input Accelerator Position Sensor (APS) #1
    83 Sensor ground Camshaft position sensor (CMPS) #1
    84 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] signal input Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
    85 Sensor ground Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
    86 Engine speed signal output Tachometer (Cluster)
    87 A/C compressor relay control output A/C compressor relay
    88 Cooling fan relay [High] control output Cooling fan relay
    89 Cruise control indicator lamp Cruise control indicator [2.4 DOHC]
    90 Cruise control indicator lamp Cruise control indicator [2.4 DOHC]
    91 Canister close valve (CCV) control output Canister close valve (CCV)
    92 Malfunction Indicator Lamp (MIL) control output Malfunction Indicator Lamp (Cluster)
    93 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] heater control output Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
    94 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] heater control output Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]

    Connector [C01-A] 

    PIN DESCRIPTION

    Pin Description Connected to
    1 Ignition coil (Cylinder #1) control output (Non-Immobilizer) Ignition coil (Cylinder #1)
    Ignition coil (Cylinder #4) control output (With-Immobilizer) Ignition coil (Cylinder #4)
    2 Ignition coil shield ground Ignition coil (Cylinder #1,2,3,4)
    3 Transaxle control output  
    4 Transaxle control output  
    5 Transaxle control output  
    6 -  
    7 -  
    8 -  
    9 Transaxle control output  
    10 Transaxle control output  
    11 Transaxle control output  
    12 Transaxle control output  
    13 -  
    14 Alternator signal Alternator
    15 Sensor ground Cruise switch
    16 Ignition coil (Cylinder #3) control output (Non-Immobilizer) Ignition coil (Cylinder #3)
      Ignition coil (Cylinder #2) control output (With-Immobilizer) Ignition coil (Cylinder #2)
    17 Transaxle control output  
    18 Transaxle control output  
    19 Transaxle control output  
    20 Transaxle control output  
    21 -  
    22 -  
    23 -  
    24 Transaxle control output  
    25 Transaxle control output  
    26 Transaxle control output  
    27 -  
    28 -  
    29 Brake lamp switch signal input Brake switch
    30 Cruise switch signal input Cruise switch
    31 Ignition coil (Cylinder #4) control output (Non-Immobilizer) Ignition coil (Cylinder #4)
      Ignition coil (Cylinder #1) control output (With-Immobilizer) Ignition coil (Cylinder #1)
    32 Transaxle control output  
    33 Transaxle control output  
    34 Transaxle control output  
    35 Transaxle control output  
    36 Transaxle control output  
    37 -  
    38 Transaxle control output  
    39 Transaxle control output  
    40 Transaxle control output  
    41 -  
    42 Blower switch input Blower switch
    43 Clutch switch signal Clutch switch
    44 Brake switch signal input Brake switch
    45 -  
    46 Ignition coil (Cylinder #2) control output (Non-Immobilizer) Ignition coil (Cylinder #2)
      Ignition coil (Cylinder #3) control output (With-Immobilizer) Ignition coil (Cylinder #3)
    47 Transaxle control output  
    48 Transaxle control output  
    49 Transaxle control output  
    50 Transaxle control output  
    51 Transaxle control output  
    52 Transaxle control output  
    53 Transaxle control output  
    54 Transaxle control output  
    55 Transaxle control output  
    56 -  
    57 A/C switch ON input A/C switch
    58 Power steering switch signal input Power steering switch
    59 -  
    60 -  
  3. Input/output signal 

    Connector [C01-K] 

    PIN DESCRIPTION

    Pin Description Condition in output signal Test result Remark
    Type Level
    1 Power ground Idle DC voltage Max. 50 mV    
    2 Ignition switch signal input IG OFF DC voltage Max. 0.5 V 10.2 mV  
    IG ON Battery voltage 12.02 V
    3 Power ground Idle DC voltage Max. 50 mV 2.8 mV  
    4 Battery voltage supply after main relay IG OFF DC voltage Max. 1.0 V 3.1 mV  
        IG ON   Battery voltage 12.1 V
    5 ECU ground Idle DC voltage Max. 50 mV 1.8 mV  
    6 Battery voltage supply after main relay Removing the key Current Below 2.0 mA 0.38 mA  
    Always DC voltage Battery voltage 12.7 V
    7 Wheel speed sensor (WSS) [+] signal input Engine run (30KPH) SINE WAVE 15Hz: Min. 0.13Vpp    
    1000Hz: Min. 0.2Vpp
    Through: Max. 250Vpp
    8 -          
    9 Fuel level sensor (FLS) signal input Idle Analog Max. 9.0 V 6.85 V  
    10 -          
    11 -          
    12 Knock sensor (KS) signal input Knocking Irregular Frequency 0.3-0.3 V Normal  
    Normal 0 V
    13 Sensor ground Idle DC voltage Max. 50 mV 30 mV  
    14 Sensor ground Idle DC voltage Max. 50 mV 12.4 mV  
    15 Camshaft position sensor (CMPS) #2 signal input Idle PULSE High: Battery voltage 5.0 V Frequency : 5.36 Hz (Idle)
    Low : Max. 0.5V 0.2 V
    16 -          
    17 Crankshaft position sensor (CMPS) signal input Idle PULSE High: Battery voltage 5.00 V Frequency : 600 Hz (Idle)
    Low : Max. 0.5V 40 mV
    18 VS-/IP- (Common Ground for VS, IP) Engine run Analog Reference for VS, IP Hi: 2.7V  
    Lo: 2.0V
    19 VS+ (Nernst Cell Voltage) Engine run Analog Normal : 450±50mV 440mV  
    Rich : Max. Normal + 150mV 508mV
    Lean : Max. Normal - 150mV 356mV
    20 Rc/Rp (Pump Cell Voltage) Engine run Analog Normal : 0±500mV 440mV  
    Rich : Max. Normal -1.5mV -860mV
    Lean : Max. Normal +1.5V 870mV
    21 -          
    22 -          
    23 Fuel consumption signal output Idle PULSE High: Battery voltage 13.7 V Frequency :3.33 Hz
            Low : Max. 0.5V 0 V PULSE Width : 500 μs
    24 -          
    25 Injector (Cylinder #1) control output Idle PULSE High: Battery voltage
    Low : Max. 1.0V    		 13.8 V
    200 mV
    54.1 V    		 Frequency : 5.21 Hz (Idle)/Injection time : 2.74 ms
    26 Injector (Cylinder #3) control output Idle PULSE High: Battery voltage
    Low : Max. 1.0V    		 13.9 V
    170 mV
    53.9 V    		 Frequency : 5.18 Hz (Idle)/Injection time : 2.73 ms
    27 Injector (Cylinder #4) control output Idle PULSE High: Battery voltage 14 V
    160 mV
    54.3 V    		 Frequency : 5.24 Hz (Idle)/Injection time : 2.70 ms
    Low : Max. 1.0V
    28 Injector (Cylinder #2) control output Idle PULSE High: Battery voltage
    Low : Max. 1.0V    		 14.1 V
    160 mV
    53.9 V    		 Frequency : 5.21 Hz (Idle)/Injection time : 2.73 ms
    29 Wheel speed sensor (WSS) [-] signal input [with ABS] Engine run (30KPH) SINE WAVE 15Hz: Min. 0.13Vpp
    1000Hz: Min. 0.2Vpp
    Through: Max. 250Vpp    		    
    30 Sensor power (+5V) IG OFF DC voltage Max. 0.5V 0 mV  
    IG ON 5±0.1V 4.98 V
    31 Manifold absolute pressure sensor (MAPS) signal input Idle Analog 0.8 V-1.6 V 1.37 V  
    32 Throttle position sensor (TPS) #2 signal input C.T Analog 4.2-5.0V 4.52 V  
    W.O.T 3.3-3.8V 3.68 V
    33 Engine coolant temperature sensor (ECTS) signal input Idle Analog 0.5V-4.5V 1.02 V  
    34 Sensor ground Idle DC voltage Max. 50 mV 8 mV  
    35 Accelerator Position Sensor (APS) #2 signal input C.T Analog 0.3-0.9V 0.4 V  
    W.O.T 1.5-3.0V 1.9 V
    36 Sensor power (+5V) IG OFF DC voltage Max. 0.5V 5 mV  
    IG ON 5±0.1V 5.02 V
    37 Sensor ground Idle DC voltage Max. 50 mV 11 mV  
    38 -          
    39 Sensor ground Idle DC voltage Max. 50 mV 11 mV  
    40 Vehicle speed signal input Engine run PULSE High : Min. 4.5V 5 V Frequency : 46.9 Hz (Idle)
    Low : Max. 0.5V 0 V Duty(-) : 50.4% (Idle)
    41 -          
    42 Rc (Compensated Resistance Idle Analog |Rc-Rc/Rp|< ± 0.1V within -107mV  
    43 Sensor power (+5V) IG OFF DC voltage Max. 0.5V   N.A.
    IG ON 5±0.1V
    44 -          
    45 Throttle position signal output Idle PULSE High: Battery voltage 14.0 V Frequency : 100 Hz
    Low : 0-0.5 V 60 mV Duty(+) : 5.05% (Idle) : 8.93% (3000 RPM)
    46 -          
    47 -          
    48 -          
    49 -          
    50 Variable intake solenoid valve (VIS) control output Active DC voltage Max. 1.0 V 316 mV  
    Inactive Battery voltage 14 V
    51 Battery voltage supply after main relay IG OFF DC voltage Max. 1.0 V 3.1 mV  
    IG ON Battery voltage 12.3 V
    52 Fuel tank pressure sensor (FTPS) signal input Idle DC voltage 0.4-4.6V 2.47 V  
    53 Intake Air temperature sensor (IATS) signal input Idle Analog 0V-5V 2.55 V  
    54 A/C pressure transducer (APT) signal input Idle DC voltage 0.4-4.6V A/C OFF : 1.29 V A/C ON : 2.01 V  
    55 -        
    56 -          
    57 Sensor ground Idle DC voltage Max. 50 mV 11 mV  
    58 -          
    59 Sensor ground Idle DC voltage Max. 50 mV 6 mV  
    60 Sensor power (+5V) IG OFF DC voltage Max. 0.5V 10 mV  
    IG ON 5±0.1V 5.02 V
    61 Sensor ground Idle DC voltage Max. 50 mV 30 mV  
    62 Camshaft position sensor (CMPS) #1 signal input Idle PULSE High: Battery voltage 5.0 V Frequency : 5.2 Hz (Idle)
    Low : Max. 0.5V 0.2 V
    63 Sensor power (+5V) IG OFF DC voltage Max. 0.5V 0 mV  
    IG ON 5±0.1V 4.98 V
    64 Main relay control output relay OFF DC voltage Battery voltage Max. 1.0 V 12.3 V
    730 mV
    52.1 V    		  
    relay ON
    65 Cooling fan relay [Low] control output A/C ON PULSE High: Battery voltage 10.4 V Frequency : 300 Hz
    Low : 0~ 0.5 V 60 mV Duty(+) : 10.18%
    66 CVVT Oil control valve (OCV) #1 control output Idle PULSE High: Battery voltage 15.0 V
    120 mV
    15.0 V    		 Frequency : 300 Hz
    Low : Max. 1.0V   Duty(+) : 84.7% (Idle)
    67 Purge control solenoid valve (PCSV) control output Inactive Active PULSE High: Battery voltage
    Low : Max. 1.0V    		 14.3 V
    80 mV
    57 V    		 Frequency : 16 Hz
    68 CVVT Oil control valve (OCV) #2 control output Idle PULSE High: Battery voltage
    Low : Max. 1.0V    		 13.5 V
    100 mV
    13.5 V    		 Frequency : 300 Hz
    69 Immobilizer lamp control output lamp OFF DC voltage High: Battery voltage 13.2 V  
    lamp ON Low : Max. 2.0V 40 mV
    70 Fuel pump relay control output relay OFF DC voltage Battery voltage 12.8 V
    40 mV
    47.3 V
    680 Ohm    		 Resistance : 680 Ohm
    relay ON Max. 1.0V
    71 ETC motor [A] control output Idle PULSE High: Battery voltage 13.4 V  
    Low : Max. 1.0V 0 V
    72 ETC motor [B] control output Idle PULSE High: Battery voltage 13.3 V  
    Low : Max. 1.0V 0 V
    73 Sensor ground Idle DC voltage Max. 50 mV 5 mV  
    74 Sensor ground Idle DC voltage Max. 50 mV 7 mV  
    75 Immobilizer communication line After IG.ON PULSE High : Min. 8.5V 11.8 V  
    Communication Low : Max. 3.5V 1.0 V
    76 -          
    77 CAN [High] RECESSIVE PULSE 2.0-3.0 V 2.58 V Communication speed : 500kbps
    DOMINANT 2.75~4.5 V 3.54 V
    78 CAN [Low] RECESSIVE PULSE 2.0-3.0 V 2.64 V Communication speed : 500kbps
    DOMINANT 0.5~2.25 V 1.52 V
    79 -          
    80 Throttle position sensor (TPS) #1 signal input C.T Analog 0.3-0.9V 0.65 V  
    W.O.T 1.5-3.0V 1.63 V
    81 -          
    82 Accelerator Position Sensor (APS) #1 signal input C.T Analog 0.3-0.9V 0.8 V  
    W.O.T 1.5-3.0V 4 V
    83 Sensor ground Idle DC voltage Max. 50 mV 12 mV  
    84 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] signal input Idle DC voltage Rich : 0.6-1.0V 740 mV  
    Lean : Max. 0.4V 70 mV
    85 Sensor ground Idle DC voltage Max. 50 mV 10 mV  
    86 Engine speed signal output Idle PULSE High: Battery voltage 14.0 V Duty(+) : 50% (Idle)
    Low : Max. 0.5V 60 mV
    Idle = 20~26Hz (Reference) 21 Hz
    87 A/C compressor relay control output A/C OFF DC voltage Battery voltage 14.3 V Resistance : 680 Ohm
    A/C ON Max. 1.0V 102 mV
    88 Cooling fan relay [High] control output Relay OFF DC voltage Battery voltage 13.9 V  
    Relay ON Max. 1.0V 175 mV
    89 Cruise control indicator lamp          
         
    90 Cruise control indicator lamp          
         
    91 Canister close valve (CCV) control output Inactive PULSE High: Battery voltage 13 V
    20 mV
    57.7 V    		 Vpeak : Max. 70V
    Active Low : Max. 1.0V  
    92 Malfunction Indicator Lamp (MIL) control output lamp OFF DC voltage Battery voltage 13.8 V  
    lamp ON Max. 1.0V 54 mV
    93 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] heater control output Engine run PULSE High: Battery voltage 14.4 V Frequency : 10 Hz
    Low : Max. 1.0V 0.36 V Duty(+) : 58.3%
    94 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] heater control output Engine run PULSE High: Battery voltage 14V Frequency : 7.68Hz
    Low : Max. 1.0V 0.31V Duty(+) : 53.9%

    Connector [C01-A] 

    PIN DESCRIPTION

    Pin Description Condition In/Output signal Test result Remark
    Type Level
    1 Ignition coil (Cylinder #1) control output (Non-Immobilizer) Idle PULSE 1st voltage : 300~400V 416 V Frequency : 5.2 Hz (Idle) Injection time : 2.78 ms
    Ignition coil (Cylinder #4) control output (With-Immobilizer) ON voltage : Max. 2V 1.4 V
    2 Ignition coil shield ground Idle DC voltage Max. 50 mV 16.8 mV  
    3 Transaxle control output          
    4 Transaxle control output          
    5 Transaxle control output          
    6 -          
    7 -          
    8 -          
    9 Transaxle control output          
    10 Transaxle control output          
    11 Transaxle control output          
    12 Transaxle control output          
    13 -          
    14 Alternator signal Idle PULSE High: Battery voltage 13.4 V  
    Low : Max 1.5 V 40 mV
    15 Sensor ground Idle DC voltage Max. 50 mV    
    16 Ignition coil (Cylinder #3) control output (Non-Immobilizer) Idle PULSE 1st voltage : 300~400V 416 V Frequency : 5.2 Hz (Idle)
    Ignition coil (Cylinder #2) control output (With-Immobilizer) ON voltage : Max. 2V 1.3 V Injection time : 2.73 ms
    17 Transaxle control output          
    18 Transaxle control output          
    19 Transaxle control output          
    20 Transaxle control output          
    21 -          
    22 -          
    23 -          
    24 Transaxle control output          
    25 Transaxle control output          
    26 Transaxle control output          
    27 -          
    28 -          
    29 Brake lamp switch signal input Brake ON DC voltage Battery voltage    
    Brake OFF Max. 0.5 V
    30 Cruise switch signal input          
    31 Ignition coil (Cylinder #4) control output (Non-Immobilizer) Idle PULSE 1st voltage : 300~400V 408 V Frequency : 5.2 Hz (Idle) Injection time : 2.74 ms
    Ignition coil (Cylinder #1) control output (With-Immobilizer) ON voltage : Max. 2V 1.6 V
    32 Transaxle control output          
    33 Transaxle control output          
    34 Transaxle control output          
    35 Transaxle control output          
    36 Transaxle control output          
    37 -          
    38 Transaxle control output          
    39 Transaxle control output          
    40 Transaxle control output          
    41 -          
    42 Blower switch input A/C OFF DC voltage Max. 0.5V 20 mV  
    A/C ON Battery voltage 11.8 V
    43 Clutch switch signal RELEASE DC voltage Max. 0.5V    
    PUSH Battery voltage
    44 Brake switch signal input PUSH DC voltage Max. 0.5 V    
    Normal Battery voltage
    45 -          
    46 Ignition coil (Cylinder #2) control output (Non-Immobilizer) Idle PULSE 1st voltage : 300~400V 410 V Frequency : 5.2 Hz (Idle)
    Ignition coil (Cylinder #3) control output (With-Immobilizer) ON voltage : Max. 2V 1.5 V Injection time : 2.78 ms
    47 Transaxle control output          
    48 Transaxle control output          
    49 Transaxle control output          
    50 Transaxle control output          
    51 Transaxle control output          
    52 Transaxle control output          
    53 Transaxle control output          
    54 Transaxle control output          
    55 Transaxle control output          
    56 -          
    57 A/C switch ON input A/C OFF DC voltage Max. 0.5V 0 V  
    A/C ON Battery voltage 14 V
    58 Power steering switch signal input S/W ON DC voltage Max. 0.5V 0 V  
    S/W OFF Battery voltage 14 V
    59 -          
    60 -          
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