Chevrolet Sonic Repair Manual: Air Metering/Acceleration

Fuel Pump Control Module Programming and Setup

The fuel pump control module must be programmed with the proper calibration software. The module stores and utilizes this information however if it is not properly configured with the correct cali ...

Throttle Actuator Control (TAC) System Description

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Air Conditioning Evaporator Thermal Expansion Valve Replacement
Air Conditioning Evaporator Thermal Expansion Valve Replacement Callout Component Name Preliminary Procedure Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. Remove the air conditioning evaporator hos ...

Control Solenoid Valve and Transmission Control Module Assembly Inspection
Verify the conditions listed below do not exist. Carefully inspect the control solenoid valve assembly connectors and pins (1, 2, 4, 6) for the condition. Repair or replace as necessary. Damage Bent pins Debris Broken retaining tab Contamination Verify there is ...

Drive Range, Second Gear (Gen 2)
As vehicle speed increases and operating conditions become appropriate, the transmission control module (TCM) processes input signals from the automatic transmission input and output speed sensors, the throttle position sensor and other vehicle sensors to determine the precise moment to comman ...