Notes On Intermittents

See NOTES ON INTERMITTENTS under TESTING & DIAGNOSIS.

CAUTION: DO NOT backprobe connector terminals at position sensors or dampers.

NOTE: After repairs, clear codes and verify system operation.

Fig 1: CODE S021 Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: CODE S021 Flow Chart

Courtesy of GENERAL MOTORS CORP.