ECU - Engine Control Unit Diagnostic Trouble Codes / Service Fault Codes

NOTE: The following diagnostic codes are pointed out in two ways: First the John Deere DTC (SPN and FMI) and afterwards the Cummins SFC (Service Fault Code).

ECU - Engine Control Unit Diagnostic Trouble Codes / Service Fault Codes

Control Unit

SPN

FMI

SFC

Priority

Indicator Light

Description

Effect

ECU

94

03

546

2

Warning

Fuel Pressure Sensor Voltage High

Engine will derate.

ECU

94

04

547

2

Warning

Fuel Pressure Sensor Voltage Low

Engine will derate.

ECU

94

15

2261

3

Info

Fuel Supply Pressure Too High

Engine may have black smoke and will derate.

ECU

94

17

2262

3

Info

Fuel Supply Pressure Too High

Engine may have black smoke and will derate.

ECU

94

18

2215

2

Warning

Fuel Supply Pressure Too Low

Engine may not start, may have low power, may have white smoke or run rough.

ECU

97

03

1845

3

Info

Water In Fuel Signal Voltage High

Does not affect performance.

ECU

97

04

1846

3

Info

Water In Fuel Signal Voltage Low

Does not affect performance.

ECU

97

15

418

3

Info

Water In Fuel Detected

Possible white smoke, or hard starting.

ECU

97

16

1852

2

Warning

Water In Fuel Detected

Possible white smoke, or hard starting.

ECU

100

01

415

1

Stop

Engine Oil Pressure Below Limit (Very Low Oil Pressure)

Progressive power derate as time goes by after alert.

ECU

100

03

135

2

Warning

Engine Oil Pressure Voltage High

No engine protection for oil pressure.

ECU

100

04

141

2

Warning

Engine Oil Pressure Voltage Low

No engine protection for oil pressure.

ECU

102

03

122

2

Warning

Intake Manifold Pressure Voltage High

Engine will derate.

ECU

102

04

123

2

Warning

Intake Manifold Pressure Voltage Low

Engine will derate.

ECU

102

17

1363

3

Info

Intake Manifold Pressure Low

 

ECU

103

02

2474

3

Info

Turbocharger Overspeed Protection

Engine will derate.

ECU

105

00

155

1

Stop

Intake Manifold Temperature Above Critical Threshold

Progressive power derate as time goes by after alert.

ECU

105

03

153

2

Warning

Intake Manifold Temperature Voltage High

Possibly white smoke, fan will stay on.

ECU

105

04

154

2

Warning

Intake Manifold Temperature Voltage Low

Possibly white smoke, fan will stay on.

ECU

105

15

2964

2

Warning

Intake Manifold Temperature High

Possibly white smoke, fan will stay on.

ECU

105

16

488

2

Warning

Intake Manifold Temperature High

Possibly white smoke, fan will stay on.

ECU

108

03

221

2

Warning

Barometric Pressure Sensor Voltage High

Engine will derate.

ECU

108

04

222

2

Warning

Barometric Pressure Sensor Voltage High

Engine will derate.

ECU

110

00

151

1

Stop

Engine Coolant Temperature Above Critical Threshold

Progressive power derate as time goes by after alert.

ECU

110

03

144

2

Warning

Engine Coolant Temperature Voltage High

Possibly white smoke, fan will stay on.

ECU

110

04

145

2

Warning

Engine Coolant Temperature Voltage Low

Possibly white smoke, fan will stay on.

ECU

110

15

2963

3

 

Engine Coolant Temperature High

 

ECU

110

16

146

2

Warning

Engine Coolant Temperature High

 

ECU

111

01

235

1

Stop

Coolant Level

Progressive power derate as time goes by after alert.

ECU

157

00

449

1

Stop

Front Rail Pressure High

Engine will derate.

ECU

157

03

451

2

Warning

Front Rail Pressure Sensor Voltage High

Engine will derate.

ECU

157

04

452

2

Warning

Front Rail Pressure Sensor Voltage Low

Engine will derate.

ECU

168

16

442

2

Warning

Battery Voltage Low

Does not affect performance.

ECU

168

18

443

2

Warning

Battery Voltage High

Possibly no noticeable performance effect, or possibility of rough idle.

ECU

174

00

266

1

Stop

Engine Fuel Temperature Above Critical Threshold

Progressive power derate as time goes by after alert.

ECU

174

03

263

2

Warning

Engine Fuel Temperature Voltage High

No engine protection for fuel temperature.

ECU

174

04

265

2

Warning

Engine Fuel Temperature Voltage Low

No engine protection for fuel temperature.

ECU

174

16

261

2

Warning

Engine Fuel Temperature High

No engine protection for fuel temperature.

ECU

190

00

234

1

Stop

Engine Speed Signal High

Fuel shut-off valve closed until engine speed drops to 2300 rpm.

ECU

190

02

689

2

Warning

No Engine Speed Signal

Engine may take longer to start.

ECU

191

16

349

2

Warning

Engine Speed

Hard starting, low power, rough idle or white smoke.

ECU

251

02

319

2

Warning

Real time clock power interruption

 

ECU

612

02

115

1

Stop

Engine magnetic speed/position lost both of two signals

Engine will derate.

ECU

627

02

1117

3

 

Power Supply

Probably no noticeable influence on performance, or possibility of engine dying, or other.

ECU

627

12

351

2

Warning

Injector Power Supply

Probably no noticeable influence on performance, or possibility of engine dying, or other.

ECU

629

12

343

2

Warning

ECU Error

Engine will not start / probably no noticeable influence on performance or severe data loss.

ECU

633

31

2311

2

Warning

Fuel Shut-Off Valve

ECU turns off fuel shut-off supply. The engine will shut down.

ECU

639

09

285

2

Warning

ECU error

 

ECU

639

13

286

2

Warning

ECU error

 

ECU

651

05

322

2

Warning

Injector Solenoid Driver Cylinder 1 Current Low

 

ECU

652

05

331

2

Warning

Injector Solenoid Driver Cylinder 2 Current Low

 

ECU

653

05

324

2

Warning

Injector Solenoid Driver Cylinder 3 Current Low

 

ECU

654

05

332

2

Warning

Injector Solenoid Driver Cylinder 4 Current Low

 

ECU

655

05

323

2

Warning

Injector Solenoid Driver Cylinder 5 Current Low

 

ECU

656

05

324

2

Warning

Injector Solenoid Driver Cylinder 6 Current Low

 

ECU

701

31

 

2

Warning

Air Cleaner Pressure Differential Extremely High

Air filter plugged.

ECU

723

02

1376

3

Info

Engine Position Sensor Fault

Low power or rough idle or white smoke.

ECU

723

07

731

2

Warning

Engine Position Sensor Misalignment

Low power or rough idle or white smoke.

ECU

1075

03

2265

2

Warning

Electric Lift Pump Voltage High

 

ECU

1176

16

618

2

Warning

Turbocharger Intake Restriction

 

ECU

1347

03

272

2

Warning

Fuel Pump Pressurizing Voltage High

 

ECU

1347

04

271

2

Warning

Fuel Pump Pressurizing Voltage Low

 

ECU

1378

31

1891

2

Warning

Engine Oil Change Interval

Engine oil change conditions achieved.

ECU

1380

18

1357

2

Warning

Engine Oil Level Low

 

ECU

1383

31

611

   

Engine Shutdown

No action by the ECU.

ECU

1384

31

1387

   

SAE J1939 Engine Command Shut Down

 

ECU

3509

03

386

2

Warning

Sensor Supply 1 Voltage High

 

ECU

3509

04

352

2

Warning

Sensor Supply 1 Voltage Low

 

ECU

3510

03

227

2

Warning

Sensor Supply 2 Voltage High

 

ECU

3510

04

187

2

Warning

Sensor Supply 2 Voltage Low

 

ECU

3511

03

 

2

Warning

Sensor Supply 3 Voltage High

 

ECU

3511

04

238

2

Warning

Sensor Supply 3 Voltage Low

 

ECU

3512

03

2185

2

Warning

Sensor Supply 4 Voltage High

 

ECU

3512

04

2186

2

Warning

Sensor Supply 4 Voltage Low

 

NOTE: If diagnostic trouble codes appear which are not listed here, contact your John Deere dealer.

OUCC002,0002D16-19-20091028