Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET1995SPORTVAN G20, 6.5 PREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 14 (ENGINE CONTROLS - TESTS W/CODES - 7.4L)TROUBLE CODE CHARTSCODES 37/38, TCC BRAKE SWITCH ON/OFFDIAGNOSTIC AIDS

1995 Chevrolet Sportvan G20, 6.5 P

Diagnostic Aids

1995 Chevrolet Sportvan G20, 6.5 PSECTION Diagnostic Aids

WARNING: This page is about a different variant/trim than selected.

If code is intermittent, check customer driving habits (driving with foot resting on brake pedal) or for unusual traffic conditions (stop and go expressway traffic).

Fig 1: Codes 37/38 Schematic (All Models) TCC Brake Switch On/Off

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.