Chevrolet Sonic Repair Manual: Control Solenoid Valve and Transmission Control Module Assembly Inspection

Chevrolet Sonic Repair Manual / Powertrain / Internal Combustion Powertrain Control / Transmission Control / 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 no metallic debris inside the connectors near the terminal pins. Clean as necessary.

Verify the control solenoid valve assembly solenoid leads (3) do not have contamination or metallic debris. Clean as necessary.

Verify the resistance between the leads of each solenoid is within the range in the table below, with the solenoids at room temperature. If the resistance of any solenoid is not within range, replace the Control Valve Body Assembly.

Inspect the 2 control solenoid valve assembly filter plate retaining tabs (5) for cracks and ensure proper tension when filter plate is attached.

Solenoid Resistance
Solenoid Name	Illustration Number	Expected Resistance Ω
Pressure Control Solenoid 3	7	3.42?.18
Pressure Control Solenoid 2	8	3.42?.18
TCC Pressure Control Solenoid Valve	9	3.42?.18
Shift Solenoid Valve 1	10	16.2?9.8
Pressure Control Solenoid 5	11	3.42?.18
Pressure Control Solenoid 4	12	3.42?.18
Line Pressure Control Solenoid Valve	13	3.42?.18

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Other materials:

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