Sensors & Switches: Notes

WARNING: This page is about a different car, the 2003 Pontiac Grand Am, 2003 Oldsmobile Alero, 2003 Chevrolet Monte Carlo, and 2003 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For additional sensor testing specifications, see appropriate SENSOR OPERATING RANGE CHARTS article.

NOTE: Perform powertrain diagnostic system check - engine controls prior to testing, and after completing any repairs. See DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS in SELF-DIAGNOSTICS - 3.4L ALERO, GRAND AM, IMPALA & MONTE CARLO article.

Manufacturer does not provide testing procedures for many individual systems and components. For sensor and switch testing not listed, perform related DTC testing procedure. See SELF-DIAGNOSTICS - 3.4L ALERO, GRAND AM, IMPALA & MONTE CARLO article.

NOTE: For circuit reference, see WIRING DIAGRAMS . For component locations, see COMPONENT LOCATIONS . For connector identification, see CONNECTOR IDENTIFICATION in SELF-DIAGNOSTICS - 3.4L ALERO, GRAND AM, IMPALA & MONTE CARLO article.