Pre-Test Instructions
Run pinpoint tests only after completing VISUAL INSPECTION or being directed there through KEY ON ENGINE OFF TEST and CONTINUOUS MONITOR MODE TEST.
- Each pinpoint test assumes a fault has been detected. Failure to comply with correct testing order can result error.
- Test results depend on proper operation of related parts. Correct any defects in this area before entering pinpoint tests.
- DO NOT replace parts unless test results indicate it.
- When one or more service codes are shown, start with first code received.
- DO NOT measure voltage or resistance at PRC control module or connect any test lights unless specified.
- Isolate both ends of a circuit and turn ignition off whenever checking for shorts or continuity, unless specified.
- Disconnect solenoids and switches from harness before measuring for continuity, resistance or energizing with 12-volt source.
- In using Pinpoint Test, follow each step in order, starting from first step in appropriate test. Follow each step until fault is found.
- An open is defined as any resistance reading more than 5 ohms unless otherwise specified.
- A short is defined as any resistance reading less than 10,000 ohms to ground, unless otherwise specified.