53
SPN 66001 FMI 3: Starter Relay Low Side Driver Voltage Above Normal or
Shorted High
SPN 66001 FMI 5: Starter Relay Low Side Driver Current Below Normal or Open
Circuit
SPN 66003
SPN Descriptor
SPN 66003 FMI 3: Malfunction Indicator Lamp (MIL) Driver Voltage Above Normal
or Shorted High
SPN 66003 FMI 5: Malfunction Indicator Lamp (MIL) Driver Current Below Normal
or Open Circuit
SPN 66004
SPN Descriptor
SPN 66004 FMI 3: Service Vehicle Soon Lamp (SVS) Voltage Above Normal or
Shorted High
SPN 66004 FMI 5: Service Vehicle Soon Lamp (SVS) Current Below Normal or
Open Circuit
SPN 66013 or 66014
SPN Descriptor
SPN 66013 FMI 3: Powertrain Relay Voltage Above Normal or Shorted High
SPN 66013 FMI 5: Powertrain Relay Current Below Normal or Open Circuit
SPN 66014 FMI 4: Powertrain Relay Contact Voltage Below Normal or Shorted
Low
SPN 66017
SPN Descriptors
SPN 66017 FMI 4: Fuel Pump Relay Voltage Below Normal or Shorted Low
SPN 66017 FMI 5: Fuel Pump Relay Current Below Normal or Open Circuit
SPN 66018
SPN Descriptor
SPN 66018 FMI 3: Tachometer Voltage Above Normal or Shorted High
SPN 66018 FMI 5: Tachometer Current Below Normal or Open Circuit
SPN 66019
SPN Descriptors
SPN 66019 FMI 3: Oxygen Sensor Bank A Sensor 1 Heater Voltage Above
Normal or Shorted High
SPN 66019 FMI 5: Oxygen Sensor Bank A Sensor 1 Heater Current Below Normal
or Open Circuit
SPN 66019 FMI 8: Oxygen Sensor Bank A Sensor 1 Heater Abnormal Frequency
or Pulse Width
SPN 66021
SPN Descriptors
SPN 66021 FMI 3: Oxygen Sensor Bank A Sensor 2 Heater Voltage Above
Normal or Shorted High
SPN 66021 FMI 5: Oxygen Sensor Bank A Sensor 2 Heater Current Below Normal
or Open Circuit
SPN 66021 FMI 8: Oxygen Sensor Bank A Sensor 2 Heater Abnormal Frequency
or Pulse Width