Hummer H2. Manual - part 131

 

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Hummer H2. Manual - part 131

 

 

Secondary Air Injection System Management Devices 

Condition 

Code 

Procedure 

Attaching hardware missing 

C 

Require replacement of hardware. 

Attaching hardware threads 
damaged 

A 

Require repair or replacement of hardware. 

Attaching hardware threads 
stripped (threads missing) 

A 

Require repair or replacement of hardware. 

Connector broken 

A 

Require repair or replacement. 

Connector (Weatherpack type) 
leaking 

A 

Require repair or replacement. 

Connector melted 

A 

Require repair or replacement. See note 

below. 

NOTE: Determine cause and correct prior to repair or replacement of part. 

Connector missing 

C 

Require replacement. 

Contaminated 

A 

Require repair or replacement. See note 

below. 

NOTE: Determine source of contamination, such as engine coolant, fuel, metal particles, 
or water. Require repair or replacement. 

Inoperative 

B 

Require repair or replacement. Further 

inspection required. See note below. 

NOTE: Inoperative includes intermittent operation or out of OEM specification. Some 
components may be serviceable; check for accepted cleaning procedure. 

Leaking 

A 

Require repair or replacement. 

Missing 

C 

Require replacement. 

Resistance out of specification 

B 

Require repair or replacement. 

Restricted, affecting performance 

A 

Require repair or replacement. 

Terminal broken 

A 

Require repair or replacement. 

Terminal burned, affecting 
performance 

A 

Require repair or replacement. See note 

below. 

NOTE: Determine cause and correct prior to repair or replacement of part. 

Terminal burned, not affecting 
performance 

2 

Suggest repair or replacement. 

Terminal corroded, affecting 
performance 

A 

Require repair or replacement. 

Terminal corroded, not affecting 
performance 

2 

Suggest repair or replacement. 

Terminal loose, affecting 
performance 

B 

Require repair or replacement. 

Terminal loose, not affecting 
performance 

1 

Suggest repair or replacement. 

Threads damaged 

A 

Require repair or replacement. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

  

SENSORS AND ACTUATORS 

NOTE: Conditions pertaining to the sensors and actuators listed in this section may be found under the name of 
the sensor or actuator.  

Sensors and Actuators 

Threads stripped (threads missing) 

A 

Require replacement. 

Wire lead conductors exposed 

B 

Require repair or replacement. 

Wire lead corroded 

A 

Require repair or replacement. 

Wire lead open 

A 

Require repair or replacement. 

Wire lead shorted 

A 

Require repair or replacement. 

Sensor 

Abbreviation 

Accelerator Pedal Position Sensor 

APP 

Air Conditioning Cycling Switch 

AC 

Air Conditioning Pressure Sensor 

Air Fuel Ratio Sensor 

Barometric Pressure Sensor 

BARO 

Camshaft Position Sensor 

CMP 

Clutch Pedal Position Switch 

CPP 

Cooling Fan Motor Sensors and Switches 

Crankshaft Position Sensor 

CKP 

Electronic Transmission Feedback Devices 

Engine Coolant Temperature Sensor 

ECT 

Evaporative Emission feedback devices 

Exhaust Gas Recirculation feedback devices 

Fan Control Sensor 

FC 

Intake Air Temperature Sensor 

IAT 

Knock Sensor 

KS 

Manifold Absolute Pressure Sensor 

MAP 

Mass Air Flow Sensor 

MAF 

O2 Sensor 

O2S 

Park Neutral Position Switch 

PNP 

Power Steering Pressure Sensor 

PSP 

Thermal Vacuum Valve 

TVV 

Throttle Position Sensor 

TP Sensor 

Throttle Position Switch 

Transmission Range Switch 

TR Switch 

Vehicle Speed Sensor 

VSS 

Volume Air Flow Sensor 

VAF 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

  

SHROUDS, BAFFLES, AND DEFLECTORS 

Shrouds, Baffles, and Deflectors 

SPARK PLUGS 

NOTE: You are not required to replace spark plugs in sets. However, you may suggest replacement of the other 
plugs for preventive maintenance.  

Spark Plugs 

Air Injection Control Solenoid 

Electronic Transmission control devices 

Evaporative Emission Canister Purge Device 

EVAP 

Exhaust Gas Recirculation Device 

EGR 

Fuel Injector 

Idle Air Control 

IAC 

Idle Speed Control Actuator 

ISC 

Mix Control Solenoid 

MC Solenoid 

Secondary Air Injection System Management Device 

AIR, PAIR 

Vacuum Regulator Solenoid 

Waste Gate Control Solenoid 

Condition 

Code 

Procedure 

Application incorrect, affecting cooling system 
performance 

A 

Require repair or replacement. 

Attaching hardware broken 

A 

Require repair or replacement of 

hardware. 

Attaching hardware missing 

C 

Require replacement of hardware. 

Attaching hardware not functioning 

A 

Require repair or replacement of 

hardware. 

Bent, affecting cooling system performance 

A 

Require repair or replacement. 

Blocked, affecting cooling system performance  A 

Require repair or replacement. 

Broken, affecting cooling system performance 

A 

Require repair or replacement. 

Cracked, affecting cooling system performance  A 

Require repair or replacement. 

Loose, affecting cooling system performance 

A 

Require repair. 

Loose, not affecting cooling system 
performance 

2 

Suggest repair. 

Missing, affecting cooling system performance 

C 

Require replacement. 

Condition 

Code 

Procedure 

Application incorrect 

B 

Require replacement. 

Electrode eroded 

1 

Suggest replacement. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

  

SPRING LOCKS 

Spring Locks 

SUPER CHARGERS 

Super Chargers 

SWITCHES 

Switches 

Fouled 

A 

Require repair or replacement. See note below. 

NOTE: Determine cause of fouling and suggest repair. 

Gap incorrect 

B 

Require repair or replacement. 

Insulation broken 

A 

Require replacement 

Insulator cracked 

A 

Require replacement. 

Leaking compression 

A 

Require repair or replacement. 

Maintenance interval 

3 

Suggest replacement. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing)  A 

Require replacement. 

Condition 

Code 

Procedure 

Leaking 

A 

Require repair or replacement. See note below. 

NOTE: Require inspection of mating and sealing surface and repair or replace as 
necessary. 

Condition 

Code 

Procedure 

Attaching hardware damaged, affecting 
operation or performance 

A 

Require repair or replacement of 

hardware. 

Attaching hardware missing 

C 

Require replacement of hardware. 

Bearing noisy 

A 

Require replacement. 

Bearing worn 

A 

Require replacement. 

Boost pressure incorrect 

A 

Require repair or replacement. See 

note below. 

NOTE: Boost pressure problems may be caused by other systems or components. 

Clearance out of specification 

B 

Require repair or replacement. 

Leaking 

A 

Require repair or replacement. 

Noisy 

2 

Suggest repair or replacement. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require repair or replacement. 

Condition 

Code 

Procedure 

Attaching hardware broken 

A 

Require repair or replacement of 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

  

 

 

 

 

 

 

 

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