Powertrain Codes

P0633

Technical Definition:

Immobilizer Key Not Programmed Engine Control Module (ECM) / Powertrain Control Module (PCM)

Trouble Code: P0633
Address: 0x0633
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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P0634

Technical Definition:

Powertrain Control Module (PCM) / Engine Control Module (ECM) / Transmission Control Module (TCM) Internal Temperature Too High

Trouble Code: P0634
Address: 0x0634
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

Technical Description:

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Possible Symptoms:

PCM/ECM/TCM Internal Temperature “A” Too High

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P0635

Technical Definition:

Power Steering Control Circuit

Trouble Code: P0635
Address: 0x0635
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Power Steering Control Circuit

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Specific Makes:

P0630

Technical Definition:

VIN Not Programmed or Incompatible Engine Control Module (ECM) / Powertrain Control Module (PCM)

Trouble Code: P0630
Address: 0x0630
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

Technical Description:

Possible Causes:

Possible Symptoms:

VIN Not Programmed or Mismatch

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Engine Control Module (ECM) Programming error
– Vehicle Identification Number (VIN) not programmed to ECM
– Faulty or wrong ECM

Specific Makes:

P0631

Technical Definition:

VIN Not Programmed or Incompatible Transmission Control Module (TCM)

Trouble Code: P0631
Address: 0x0631
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P0632

Technical Definition:

Odometer Not Programmed Engine Control Module (ECM) / Powertrain Control Module (PCM)

Trouble Code: P0632
Address: 0x0632
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

Technical Description:

Possible Causes:

Possible Symptoms:

Odometer Not Programmed or Mismatch

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Engine Control Module (ECM) Programming error
– Odometer not programmed to ECM
– Faulty or wrong ECM

Specific Makes:

P062C

Technical Definition:

(Internal Control Module) Vehicle Speed Performance

Trouble Code: P062C
Address: 0x062C
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P062D

Technical Definition:

Fuel Injector Driver Circuit Performance (Bank 1)

Trouble Code: P062D
Address: 0x062D
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P062E

Technical Definition:

Fuel Injector Driver Circuit Performance (Bank 2)

Trouble Code: P062E
Address: 0x062E
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P062F

Technical Definition:

(Internal Control Module) Electrically Erasable Programmable Read-Only Memory (EEPROM) Error

Trouble Code: P062F
Address: 0x062F
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P0629

Technical Definition:

Fuel Pump A Control Circuit High

Trouble Code: P0629
Address: 0x0629
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P062A

Technical Definition:

Fuel Pump A Control Circuit Range / Performance

Trouble Code: P062A
Address: 0x062A
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P062B

Technical Definition:

(Internal Control Module) Fuel Injector Control Performance

Trouble Code: P062B
Address: 0x062B
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P0628

Technical Definition:

Fuel Pump A Control Circuit Low

Trouble Code: P0628
Address: 0x0628
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P0625

Technical Definition:

Generator Field / F Terminal Circuit Low

Trouble Code: P0625
Address: 0x0625
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

Technical Description:

Possible Causes:

Possible Symptoms:

Generator Field Terminal Circuit Low

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty battery
– Generator drive belt missing or loose
– Faulty Generator
– Generator harness is open or shorted
– Generator circuit poor electrical connection

Specific Makes:

P0626

Technical Definition:

Generator Field / F Terminal Circuit High

Trouble Code: P0626
Address: 0x0626
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

Technical Description:

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Possible Symptoms:

Generator Field Terminal Circuit High

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Tech Notes:

– Faulty battery
– Generator drive belt missing or loose
– Faulty Generator
– Generator harness is open or shorted
– Generator circuit poor electrical connection

Specific Makes:

P0627

Technical Definition:

Fuel Pump A Control Circuit / Open

Trouble Code: P0627
Address: 0x0627
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

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Specific Makes:

P0620

Technical Definition:

Generator Control Circuit

Trouble Code: P0620
Address: 0x0620
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

Technical Description:

Possible Causes:

Possible Symptoms:

Generator Control Circuit Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Battery charge
– Faulty Generator
– Generator harness is open or shorted
– Generator circuit poor electrical connection
– Engine Control Module (ECM) controlled generator
– Faulty ECM

Specific Makes:

P0621

Technical Definition:

Generator Lamp / L Terminal Circuit

Trouble Code: P0621
Address: 0x0621
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits

Technical Description:

Possible Causes:

Possible Symptoms:

Generator Lamp L Control Circuit Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Battery charge
– Faulty Generator
– Generator harness is open or shorted
– Generator circuit poor electrical connection
– Engine Control Module (ECM) controlled generator
– Faulty ECM

Specific Makes:

P0622

Technical Definition:

Generator Field / F Terminal Circuit

Trouble Code: P0622
Address: 0x0622
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits