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Control module and output signals

DTC Error Message Diagnostic Procedure Malfunction Criteria and Threshold Value Secondary Parameters with Enable Conditions Monitoring Time Length Frequency of checks, MIL Illum
P0601 Internal Control Module Memory Check Sum Error -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . Internal check sum, incorrect - -
  • Continuous
  • 2 DCY
P0604 Internal Control Module Random Access Memory (RAM) Error -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . Write ability check, failed - -
  • Continuous
  • 2 DCY
P0605 Internal Control Module Read Only Memory (ROM) Error -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . Checksum Incorrect - -
  • Continuous
  • 2 DCY
P0606 ECM/PCM Processor -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING .
  • Sensor offset correction> 0.1 V
  • Sensor IC power supply voltage < 9.0 V
  • Communication CPU - Sensor IC - Failed
  • Delta resistance measured vs. modeled> 45 Ohm
  • Signal voltage >4.87 V Signal voltage <1 V
  • Altitude signal >2560 hPa
  • Altitude signal gradient> 75 hPa per 20 sec.
  • and Altitude signal <-120 hPa >120 hPa
  • Difference between altitude signal in current and last DCY >150 hPa and altitude signal<-120 hPa >120 hPa
  • Throttle actuator shut off test Failed High/Low voltage check Out of range EEPROM Check failed
  • Communication check Failed Engine torque, Fuel pressure, Engine speed, Ignition angle, Fuel system correction, Fuel injection, Check of variant coding, Throttle actuator at mechanical lower stop, ADC check, Accelerator position - Out of range
  • Battery voltage, 10.7-16.1 V
  • Engine start, Completed
  • Engine speed, >25 RPM
  • Engine idle, >2 Sec.
  • Battery voltage, 10.7-16.1 V
 10 Seconds 15 Seconds 0.2 Seconds 2 Seconds
  • 2 DCY
  • Once/DCY
  • Continuous
P0627 Fuel Pump "A" Control Circuit /Open -- Check the fuel pressure --. Refer to FUEL PRESSURE, CHECKING .
  • Internal error fuel pump control unit
  • Feedback from fuel pump control unit Pump blocked short circuit to battery +, ground or open circuit
  • Battery voltage, > 9-16 V
  • Engine start, Completed
 15 Seconds
  • No Mil
P0638 Throttle Actuator Control Range/Performance - Bank 1 -- Check the Throttle Valve Control Module -J338-. Refer to THROTTLE VALVE CONTROL MODULE J338, CHECKING .
  • Time to open over reference point + 12%, > 0.14 Sec.
  • Time to close below reference point, + 3%, > 0.56 Sec.
or
  • Time to open over reference point + 1.49%, > 0.14 Sec.
  • Time to close below reference point, + 2.49%, > 0.56 Sec.
  • Repeated learning of lower Stop Limit, Failed
  • TPS 1 signal voltage, not (0.42-0.77) V
  • TPS 2 signal voltage, not (4.26-4.58) V
  • First learning of lower Stop Limit, Failed
  • Ignition, on
  • Engine speed, <300 RPM
  • IAT, >5.25° C
  • Vehicle speed, 0 km/h
  • ECT, >5.25° C
 5 Seconds
  • 2 DCY
P0641 Sensor Reference Voltage A Circuit/Open -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . Internal fault Threshold values depending on internal 5 V rev voltage 0.4 Seconds
  • 2 DCY
P0642 Sensor Reference Voltage A Circuit Low -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . Signal voltage, < 4.6-5 V Threshold values depending on internal 5 V rev voltage 0.5 Seconds
  • 2 DCY
P0643 Sensor Reference Voltage A Circuit High -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . 5 V supply voltage >4.99-5.41 V Threshold values depending on internal 5 V rev voltage 0.5 Seconds
  • 2 DCY
P0651 Sensor Reference Voltage B Circuit/Open -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . Internal fault Threshold values depending on internal 5 V rev voltage 0.4 Seconds
  • 2 DCY
P0652 Sensor Reference Voltage B Circuit Low -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . Signal voltage, < 4.6-5 V Threshold values depending on internal 5 V rev voltage 0.5 Seconds
  • 2 DCY
P0653 Sensor Reference Voltage B Circuit High -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . 5 V supply voltage >4.99-5.41 V Threshold values depending on internal 5 V rev voltage 0.5 Seconds
  • 2 DCY
P0657 Actuator Supply Voltage A Circuit / Open -- Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING . Signal voltage, > 4.4-5.6 V
  • Relay, commanded off
  • Engine speed, > 80 RPM
  • Battery voltage test counter, 9.04-16 V>3
 0.5 Seconds
  • 2 DCY
P0658 Actuator Supply Voltage A Circuit Low -- Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING . Signal voltage, < 2.15-3.25 V
  • Relay, commanded off (Key on engine off)
  • Engine speed, < 80 RPM
  • Battery voltage test counter, 9.04-16 V>3
 0.5 Seconds
  • 2 DCY
P0659 Actuator Supply Voltage "A" Circuit High -- Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING . Signal current >1.1 A
  • Relay, commanded off
  • Engine speed, < 80 RPM
  • Battery voltage test counter, 9.04-16 V>3
 0.5 Seconds
  • 2 DCY
P0685 ECM/PCM Power Relay Control Circuit/Open -- Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING .
  • Signal voltage, 2.6-3.7 V
  • Sense circuit voltage, >6 V
 ECM keep alive time main relay, Commanded on (Test pulse) 0.5 Seconds
  • 2 DCY
P0686 ECM/PCM Power Relay Control Circuit Low -- Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING .
  • Signal voltage, 2.6-3.7 V
  • Sense circuit voltage, >6 V
 ECM keep alive time main relay, Commanded on (Test pulse) 0.5 Seconds
  • 2 DCY
P0687 ECM/PCM Power Relay Control Circuit High -- Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING .
  • Signal current, >1.4-0.7 A
  • Sense circuit voltage, <6 V
  • Main relay, Commanded on
  • ECM keep alive time main relay, Commanded on (Test pulse)
 0.5 Seconds
  • 2 DCY
P0688 ECM/PCM Power Relay Sense Circuit -- Check the Motronic Engine Control Module (ECM) Power Supply Relay -J271-. Refer to VOLTAGE SUPPLY, CHECKING .
  • Sense voltage, <3.0 V
  • Difference sense circuit voltage with camshaft actuator commanded off and on >2.5 V
  • Battery voltage > 3 V
  • Main relay, commanded on
  • ECM keep alive time
  • Switch off test - Failed
 1 Second 4 Seconds 2 Seconds
  • 2 DCY
P0697 Sensor Reference Voltage C Circuit / Open -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . Internal fault Threshold values dep. on internal 5 V rev voltage 0.4 Seconds
  • 2 DCY
P0698 Sensor Reference Voltage C Circuit Low -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . Signal voltage, < 4.6-5 V Threshold values dep. on internal 5 V rev voltage 0.4 Seconds
  • 2 DCY
P0699 Sensor Reference Voltage C Circuit High -- Replace the Motronic Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REMOVING AND INSTALLING . 5 V supply voltage>4.99-5.41 V Threshold values dep. on internal 5 V rev voltage 0.4 Seconds
  • 2 DCY
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