TROUBLESHOOTING CHARTS (Cont.) -726280601

TM 9-2320-364-20-1

Section IV. TROUBLESHOOTING CHARTS (Cont.)

FLASH CODE:

DDR DISPLAY:

OIL PRESSURE SENSOR INPUT VOLTAGE LOW

SAE J1587 CODE:

PID: 100 FMI: 4

Indicates that the engine Oil Pressure Sensor (OPS) input to the ECM has dropped below 5% (normally < 0.25

volts) of the sensor supply voltage. This diagnostic condition is typically:

(1) open sensor signal circuit

(2) open sensor +5 volt supply circuit

(3) sensor signal is shorted to the sensor return circuit or to ground

(4) sensor +5 volt supply is shorted to sensor return circuit

FLASH CODE:

DDR DISPLAY:

TOO MANY SRS (MISSING TRS)

SAE J1587 CODE:

PID: 21 FMI: 0

Indicates that the Synchronous Reference Sensor (SRS) has detected extra pulses, or the Timing Reference

Sensor (TRS) has detected missing pulses.

FLASH CODE:

DDR DISPLAY:

TOO FEW SRS (MISSING SRS)

SAE J1587 CODE:

PID: 21 FMI: 1

Indicates that the Synchronous Reference Sensor (SRS) has detected missing pulses, or the Timing Reference

Sensor (TRS) has detected extra pulses.

FLASH CODE:

DDR DISPLAY:

COOLANT TEMPERATURE HIGH

SAE J1587 CODE:

PID: 110 FMI: 0

Indicates that the Coolant Temperature Sensor (CTS) has detected that the engine coolant temperature has ex-

ceeded the recommended safe operating range.

FLASH CODE:

DDR DISPLAY:

OIL TEMPERATURE HIGH

SAE J1587 CODE:

PID: 175 FMI: 0

Indicates that the Oil Temperature Sensor (OTS) has detected that the engine oil temperature has exceeded the

recommended safe operating range.

FLASH CODE:

DDR DISPLAY:

OIL PRESSURE LOW

SAE J1587 CODE:

PID: 100 FMI: 1

Indicates that the Oil Pressure Sensor (OPS) has detected that the engine oil pressure has dropped below the

recommended safe operating range.

FLASH CODE:

DDR DISPLAY:

ECM BATTERY VOLTAGE LOW

SAE J1587 CODE:

PID: 168 FMI: 1

Indicates that the DDEC III/IV ECM has detected that the main battery supply voltage to the ECM has dropped

below the recommended operating range.

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