Test Descriptions

Instructions For Using The Pinpoint Tests

1. Do not run any of the following Pinpoint Tests unless you are so instructed by the Quick Test. Each Pinpoint Test assumes that a fault has been detected in the system with direction to enter a specific service routine. Performing any Pinpoint Test without direction from the Quick Test may produce incorrect results and cause replacement of satisfactory components.
2. Do not replace any component unless the test result indicates that it should be replaced.
3. When more than one service code is received, always start service with the first code received.
4. Do not measure voltage or resistance at the ECA or connect any test lights to it, unless otherwise specified.
5. Isolate both ends of a circuit, and turn the ignition key off whenever checking it for shorts or continuity, unless otherwise specified.
6. Disconnect solenoids and switches from the harness before measuring for continuity, resistance or energizing by way of 12 volt source, unless otherwise instructed.
7. In using the Pinpoint Tests, follow each step in order, starting from the first step in the appropriate test. Follow each step until the fault is found.
8. After completing any service to the IVSC system, verify that all components are properly reconnected and repeat the Quick Test.
9. An open is defined as any resistance reading greater than 5 ohms, unless otherwise specified.
10. A short is defined as any resistance reading less than 10,000 ohms to ground, unless otherwise specified. Refer to PINPOINT TEST WIRING DIAGRAMS under SCHEMATIC DIAGRAMS/ELECTRICAL AND ELECTRONIC DIAGRAMS as necessary during Pinpoint Tests. To perform Pinpoint Tests, refer to DIAGNOSTIC CHARTS.