Powertrain Codes

P1903

Technical Definition:

Kickdown Solenoid Circuit Low Voltage

Trouble Code: P1903
Address: 0x1903
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Pressure Control Solenoid C Short Circuit

Possible Solutions:

OBD-II Trouble Code Type:

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Specific Makes:

P1901

Technical Definition:

Turbine Shaft Speed Sensor Circuit Intermittent

Trouble Code: P1901
Address: 0x1901
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

TSS Circuit Intermittent Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

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Specific Makes:

P1902

Technical Definition:

Kickdown Solenoid Relay Control Circuit (Allison

Trouble Code: P1902
Address: 0x1902
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Pressure Control Solenoid B Intermittent Short

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

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Specific Makes:

P1900

Technical Definition:

Output Shaft Speed Sensor Circuit Intermittent

Trouble Code: P1900
Address: 0x1900
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

OSS Circuit Intermittent Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

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Specific Makes:

P1898

Technical Definition:

Axle Disconnect Indicator Circuit High

Trouble Code: P1898
Address: 0x1898
System: Powertrain
Subsystem:

Technical Description:

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OBD-II Trouble Code Type:

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Specific Makes:

P1899

Technical Definition:

Axle Disconnect Indicator Circuit Low

Trouble Code: P1899
Address: 0x1899
System: Powertrain
Subsystem:

Technical Description:

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OBD-II Trouble Code Type:

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Specific Makes:

P189A

Technical Definition:

Axle Disconnect Input Switch Circuit Low

Trouble Code: P189A
Address: 0x189A
System: Powertrain
Subsystem:

Technical Description:

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OBD-II Trouble Code Type:

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Specific Makes:

P189B

Technical Definition:

Axle Disconnect Input Switch Circuit High

Trouble Code: P189B
Address: 0x189B
System: Powertrain
Subsystem:

Technical Description:

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OBD-II Trouble Code Type:

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Specific Makes:

P1895

Technical Definition:

Axle Disconnect Disengagement Solenoid Circuit Low

Trouble Code: P1895
Address: 0x1895
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

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Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

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Specific Makes:

P1896

Technical Definition:

Axle Disconnect Engagement Position Sensor Circuit High

Trouble Code: P1896
Address: 0x1896
System: Powertrain
Subsystem:

Technical Description:

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Possible Solutions:

OBD-II Trouble Code Type:

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Specific Makes:

P1897

Technical Definition:

Axle Disconnect Engagement Position Sensor Circuit Low

Trouble Code: P1897
Address: 0x1897
System: Powertrain
Subsystem:

Technical Description:

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OBD-II Trouble Code Type:

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Specific Makes:

P1893

Technical Definition:

Axle Disconnect Engagement Solenoid Circuit Low

Trouble Code: P1893
Address: 0x1893
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

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Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1894

Technical Definition:

Axle Disconnect Disengagement Solenoid Circuit High

Trouble Code: P1894
Address: 0x1894
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

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OBD-II Trouble Code Type:

Diagnostic Step:

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Specific Makes:

P1891

Technical Definition:

Transfer Case Contact Plate Ground Return Open Circuit

Trouble Code: P1891
Address: 0x1891
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission Transfer Case Contact Plate Ground Return Open Circuit

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1892

Technical Definition:

Axle Disconnect Engagement Solenoid Circuit High

Trouble Code: P1892
Address: 0x1892
System: Powertrain
Subsystem:

Technical Description:

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OBD-II Trouble Code Type:

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Specific Makes:

P188F

Technical Definition:

Transfer Case Contact Plate Ground Return Short to Battery

Trouble Code: P188F
Address: 0x188F
System: Powertrain
Subsystem:

Technical Description:

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OBD-II Trouble Code Type:

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Specific Makes:

P1890

Technical Definition:

4-Wheel Drive Mode Select Return Input Circuit Failure

Trouble Code: P1890
Address: 0x1890
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission 4WD Mode Select Return Input Circuit Failure

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

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Specific Makes:

P188E

Technical Definition:

Oil Pressure Pump Control Circuit

Trouble Code: P188E
Address: 0x188E
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

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OBD-II Trouble Code Type:

Diagnostic Step:

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Specific Makes:

P188A

Technical Definition:

Differential Oil Temperature Too High/Too Low

Trouble Code: P188A
Address: 0x188A
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P188B

Technical Definition:

All Wheel Drive Clutch Control Circuit

Trouble Code: P188B
Address: 0x188B
System: Powertrain
Subsystem: