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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
P0600 Serial Communication Link Short to battery positive Short to ground Core connection ECM receiving no signal from CAN bus --- 0.5 Sec 0.5 Sec 2 DCY
P0601 Internal Control Module Memory Check Sum Error Calculate check sum   0.5 Sec
  • 2 DCY
P0602 Control Module Programming Error Message arriving from automatic transmission while ECU is calibrated for manual transmission-Message from automatic transmission --- 0.5 Sec 2 DCY
P0603 Internal Control Module Memory Check Sum Error Write and read back value is not correct --- 200 mS yes; immediate
P0604 Internal Control Module Random Access Memory (RAM) Error Write ability check   0.5 Sec
  • 2 DCY
P0605 Internal Control Module Read Only Memory (ROM) Error Wrong check sum   0.5 Sec
  • 2 DCY
P0606 Internal Control Module Memory Check Sum Error Short to Battery +, > 4.88 V Short to Ground, 0.14 V --- 2 Sec
  • 2 DCY
P0638 Throttle Actuator Control Range/Performance OPEN to > ref. Point (+) 12%- t> 0.14 seconds Then CLOSED to ref. point (+) 3% t > 0.56 Sec Closed to 1% t > 0.3 Sec then OPEN to ref. (-) 1.5% t > 0.56 Sec Voltage ranges- sensor1: 0.21 - 0.87 V sensor 2: 4.14 - 4.84 V Ignition-ON Engine speed-0 Rpm Intake air temperature-> 5°C Vehicle speed-0 Mph ECT-> 5°C Ignition-ON Engine speed-0 Rpm Intake air temperature-> 5°C Vehicle speed-0 Mph ECT-> 5°C Ignition-ON Engine speed-0 Rpm Intake air temperature-> 5°C Vehicle speed-0 Mph ECT-> 5°C 5 Sec
  • 2 DCY
P0685 ECM/PCM Power Relay Control CircuitOpen Open circuit-Control voltage 0.61 Volts Sense circuit voltage-3.0 Volts 0.5 Sec
  • 2 DCY
P0686 ECM/PCM Power Relay Control Circuit Low Short to ground-Control voltage 0.51 Volts Sense circuit voltage- > 5.5 V 0.5 Sec
  • 2 DCY
P0687 ECM/PCM Power Relay Control Circuit High Short to battery positive-Control voltage >4.0 Volts Sense circuit voltage- 3.0 V 0.5 Sec
  • 2 DCY
P0688 ECM/PCM Power Relay Sense Circuit Open Voltage too low-3.0 Volts
  • Main relay- On
 2 Sec
  • 2 DCY
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