A & C Chart References

NOTE: Testing individual components does not isolate shorts or opens. Perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens. The following table provides the location of commonly used diagnostic information. These former "A" and "C" charts are now written in text and inserted into the appropriate location in the new Engine Performance workflow. To familiarize yourself with the Engine Performance workflow, see AA - USING THIS SECTION article in the ENGINE PERFORMANCE Section.

A & C CHART REFERENCE

System Or Component	Diagnostic Information Location
A-1 & A-2, SERVICE ENGINE SOON Light	See DIAGNOSTIC CIRCUIT CHECK in BASIC TESTING Article
A-3, No Start	See NO START - ENGINE CRANKS OKAY in BASIC TESTING Article
A-5, Fuel Pump Relay	See FUEL SYSTEM
A-7, Fuel System Diagnosis	See BASIC FUEL SYSTEM CHECKS in BASIC TESTING Article
C-1, MAP Sensor	See ENGINE SENSORS & SWITCHES
C-1, Power Steering Pressure Switch	See ENGINE SENSORS & SWITCHES
C-1, Park/Neutral Position Switch	See ENGINE SENSORS & SWITCHES
C-2, Injector Balance Test	See FUEL SYSTEM
C-2, IAC Motor	See IDLE CONTROL SYSTEM
C-2, ISC Motor	See IDLE CONTROL SYSTEM
C-3, Canister Purge System (Fuel Evap Control)	See EMISSION SYSTEMS & SUB-SYSTEMS
C-4, EST Ignition Check	See BASIC IGNITION SYSTEM CHECKS In BASIC TESTING Article
C-5, KS Ignition Check	See IGNITION SYSTEM
C-6, Air Injection System	See EMISSION SYSTEMS & SUB-SYSTEMS
C-7, EGR System	See EMISSION SYSTEMS & SUB-SYSTEMS
C-8, M/T Shift Lights (M/T)	See MISCELLANEOUS CONTROLS
C-8, Reverse Lock-Out Solenoid (M/T)	See MISCELLANEOUS CONTROLS
C-8, Torque Converter Clutch (A/T)	See MISCELLANEOUS CONTROLS
C-10, A/C Clutch Control	See MISCELLANEOUS CONTROLS
C-12, Electric Cooling Fan Control	See MISCELLANEOUS CONTROLS
C-18, Supercharger Boost Control	See AIR INDUCTION SYSTEMS