Vehicle Control Unit

SPN Number

Warning Light

DTC Description

VCU-91.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-96.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-96.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-96.17

Service Alert

Data Valid but Below Normal Operating Range - Least Severe Level

VCU-107.0

Service Alert

Data Valid but Above Normal Operational Range - Most Severe Level

VCU-111.1

Stop

Data Valid but Below Normal Operational Range - Most Severe Level

VCU-168.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-168.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-237.2

Service Alert

Data Erratic, Intermittent or Incorrect

VCU-237.14

Service Alert

Special Instructions

VCU-237.31

Service Alert

Not Available or Condition Exists

VCU-444.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-444.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-627.8

Service Alert

Abnormal Frequency or Pulse Width or Period

VCU-628.2

Info

Data Erratic, Intermittent or Incorrect

VCU-628.12

Info

Bad Intelligent Device or Component

VCU-629.12

Info

Bad Intelligent Device or Component

VCU-630.13

Service Alert

Out of Calibration

VCU-876.5

Service Alert

Current Below Normal or Open Circuit

VCU-876.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-876.12

Service Alert

Bad Intelligent Device or Component

VCU-876.16

Service Alert

Data Valid but Above Normal Operating Range - Moderately Severe Level

VCU-970.31

Stop

Not Available or Condition Exists

VCU-1071.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-1071.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-1071.5

Service Alert

Current Below Normal or Open Circuit

VCU-1321.5

Service Alert

Current Below Normal or Open Circuit

VCU-1321.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-1321.12

Service Alert

Bad Intelligent Device or Component

VCU-1508.0

Stop

Data Valid but Above Normal Operational Range - Most Severe Level

VCU-1508.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-1508.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-1508.5

Service Alert

Current Below Normal or Open Circuit

VCU-1508.15

Service Alert

Data Valid but Above Normal Operating Range - Least Severe Level

VCU-1569.31

Service Alert

Not Available or Condition Exists

VCU-1713.16

Service Alert

Data Valid but Above Normal Operating Range - Moderately Severe Level

VCU-2602.1

Stop

Data Valid but Below Normal Operational Range - Most Severe Level

VCU-2602.14

Stop

Special Instructions

VCU-3509.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-3509.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-3510.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-3510.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521794.5

Service Alert

Current Below Normal or Open Circuit

VCU-521794.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521794.12

Service Alert

Bad Intelligent Device or Component

VCU-521805.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521805.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521806.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521806.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521806.5

Service Alert

Current Below Normal or Open Circuit

VCU-521808.0

Service Alert

Data Valid but Above Normal Operational Range - Most Severe Level

VCU-521808.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521808.18

Service Alert

Data Valid but Below Normal Operating Range - Moderately Severe Level

VCU-521808.31

Service Alert

Not Available or Condition Exists

VCU-521813.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521814.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521815.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521815.12

Service Alert

Bad Intelligent Device or Component

VCU-521816.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521817.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521817.5

Service Alert

Current Below Normal or Open Circuit

VCU-521817.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521817.12

Service Alert

Bad Intelligent Device or Component

VCU-521818.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521818.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521818.5

Service Alert

Current Below Normal or Open Circuit

VCU-521819.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521819.5

Service Alert

Current Below Normal or Open Circuit

VCU-521819.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521819.12

Service Alert

Bad Intelligent Device or Component

VCU-521820.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521820.5

Service Alert

Current Below Normal or Open Circuit

VCU-521820.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521820.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521820.12

Service Alert

Bad Intelligent Device or Component

VCU-521821.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521821.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521821.5

Service Alert

Current Below Normal or Open Circuit

VCU-521822.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521822.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521822.5

Service Alert

Current Below Normal or Open Circuit

VCU-521823.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521823.5

Service Alert

Current Below Normal or Open Circuit

VCU-521823.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521823.12

Service Alert

Bad Intelligent Device or Component

VCU-521824.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521824.5

Service Alert

Current Below Normal or Open Circuit

VCU-521824.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521824.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521824.12

Service Alert

Bad Intelligent Device or Component

VCU-521825.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521825.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521825.5

Service Alert

Current Below Normal or Open Circuit

VCU-521826.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521826.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521826.5

Service Alert

Current Below Normal or Open Circuit

VCU-521828.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521828.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521828.5

Service Alert

Current Below Normal or Open Circuit

VCU-521829.5

Service Alert

Current Below Normal or Open Circuit

VCU-521829.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521829.12

Service Alert

Bad Intelligent Device or Component

VCU-521830.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521830.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521830.5

Service Alert

Current Below Normal or Open Circuit

VCU-521831.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521831.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521831.5

Service Alert

Current Below Normal or Open Circuit

VCU-521832.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521832.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521832.5

Service Alert

Current Below Normal or Open Circuit

VCU-521833.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521833.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521833.5

Service Alert

Current Below Normal or Open Circuit

VCU-521860.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521861.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521862.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521862.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521862.5

Service Alert

Current Below Normal or Open Circuit

VCU-521863.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521863.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521863.5

Service Alert

Current Below Normal or Open Circuit

VCU-521864.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521864.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521864.5

Service Alert

Current Below Normal or Open Circuit

VCU-521865.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521865.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521865.5

Service Alert

Current Below Normal or Open Circuit

VCU-521866.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521866.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521866.5

Service Alert

Current Below Normal or Open Circuit

VCU-521867.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521867.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521867.5

Service Alert

Current Below Normal or Open Circuit

VCU-521868.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521868.5

Service Alert

Current Below Normal or Open Circuit

VCU-521868.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521868.12

Service Alert

Bad Intelligent Device or Component

VCU-521868.14

Info

Special Instructions

VCU-521869.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521869.5

Service Alert

Current Below Normal or Open Circuit

VCU-521869.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521869.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521869.12

Service Alert

Bad Intelligent Device or Component

VCU-521870.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521870.5

Service Alert

Current Below Normal or Open Circuit

VCU-521870.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521870.12

Service Alert

Bad Intelligent Device or Component

VCU-521871.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521871.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521871.5

Service Alert

Current Below Normal or Open Circuit

VCU-521872.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521872.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521872.5

Service Alert

Current Below Normal or Open Circuit

VCU-521872.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521873.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521873.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521873.5

Service Alert

Current Below Normal or Open Circuit

VCU-521874.5

Service Alert

Current Below Normal or Open Circuit

VCU-521874.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521874.12

Service Alert

Bad Intelligent Device or Component

VCU-521875.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521875.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521875.5

Service Alert

Current Below Normal or Open Circuit

VCU-521876.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521876.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521876.5

Service Alert

Current Below Normal or Open Circuit

VCU-521877.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521877.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521877.5

Service Alert

Current Below Normal or Open Circuit

VCU-521878.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521878.12

Service Alert

Bad Intelligent Device or Component

VCU-521879.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521879.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521879.5

Service Alert

Current Below Normal or Open Circuit

VCU-521880.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521880.5

Service Alert

Current Below Normal or Open Circuit

VCU-521880.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521880.12

Service Alert

Bad Intelligent Device or Component

VCU-521881.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521881.5

Service Alert

Current Below Normal or Open Circuit

VCU-521881.6

Service Alert

Current Above Normal or Grounded Circuit

VCU-521881.12

Service Alert

Bad Intelligent Device or Component

VCU-521882.0

Service Alert

Data Valid but Above Normal Operational Range - Most Severe Level

VCU-521882.1

Service Alert

Data Valid but Below Normal Operational Range - Most Severe Level

VCU-521884.0

Service Alert

Data Valid but Above Normal Operational Range - Most Severe Level

VCU-521884.1

Service Alert

Data Valid but Below Normal Operational Range - Most Severe Level

VCU-521885.0

Service Alert

Data Valid but Above Normal Operational Range - Most Severe Level

VCU-521885.1

Service Alert

Data Valid but Below Normal Operational Range - Most Severe Level

VCU-521886.0

Service Alert

Data Valid but Above Normal Operational Range - Most Severe Level

VCU-521886.1

Service Alert

Data Valid but Below Normal Operational Range - Most Severe Level

VCU-521888.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-521893.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521893.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521893.16

Service Alert

Data Valid but Above Normal Operating Range - Moderately Severe Level

VCU-521894.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-521894.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-521894.16

Service Alert

Data Valid but Above Normal Operating Range - Moderately Severe Level

VCU-522826.14

Service Alert

Special Instructions

VCU-523291.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-523291.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-523291.16

Service Alert

Data Valid but Above Normal Operating Range - Moderately Severe Level

VCU-523315.0

Service Alert

Data Valid but Above Normal Operational Range - Most Severe Level

VCU-523315.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-523315.18

Service Alert

Data Valid but Below Normal Operating Range - Moderately Severe Level

VCU-523315.31

Service Alert

Not Available or Condition Exists

VCU-523318.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-523318.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-523318.16

Service Alert

Data Valid but Above Normal Operating Range - Moderately Severe Level

VCU-523319.12

Service Alert

Bad Intelligent Device or Component

VCU-523322.7

Service Alert

Mechanical System not Responding or Out of Adjustment

VCU-523322.14

Service Alert

Special Instructions

VCU-523322.31

Service Alert

Not Available or Condition Exists

VCU-523378.5

Service Alert

Current Below Normal or Open Circuit

VCU-523623.12

Service Alert

Bad Intelligent Device or Component

VCU-523651.2

Service Alert

Data Erratic, Intermittent or Incorrect

VCU-523787.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-524124.3

Service Alert

Voltage Above Normal, or Shorted to High Source

VCU-524124.4

Service Alert

Voltage Below Normal, or Shorted to Low Source

VCU-524124.5

Service Alert

Current Below Normal or Open Circuit

VCU-524124.14

Service Alert

Special Instructions

VCU-524124.31

Service Alert

Not Available or Condition Exists

BL04947,000015E-19-20101124