P0638

Technical Definition:

Throttle Actuator Control Range / Performance (Bank 1)

Trouble Code: P0638
Address: 0x0638
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Throttle Actuator Control Range/Performance Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Drive-by-wire control system malfunction
– Throttle actuator malfunction
– Throttle valve malfunction
– PCM malfunction

Specific Makes:

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:

Possible Causes:

Possible Symptoms:

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

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

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
Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

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:

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:

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
Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

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:

Possible Causes:

Possible Symptoms:

Generator Field Terminal Circuit High

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:

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: