Diagnostic Aids
PINPOINT TEST A is intended to diagnose no-start conditions. PINPOINT TESTS B through F are intended to diagnose hard faults. See 2.3L EI PINPOINT TEST INDEX table. Intermittent failures may be difficult to diagnose using these procedures.
EEC-IV Breakout Box (T83L-50-EEC-IV) connected to EI (Low Data Rate) Diagnostic Cable (007-00044) is referred to as breakout box. If a second breakout box is connected to PCM wiring harness connector, it will be referred to as second breakout box. This setup allows testing of ignition components and wiring harness circuits.
Circuits are identified in all capitals, for example: PIP. Manufacturer's breakout box overlay test terminals are identified by a "J" prefix, for example: J31 (PIP). This indicates test terminal number and circuit identification.
When letter "I" follows circuit identification, it implies circuit at ICM. For example: J31 (PIP I). When letter "S" follows circuit identification, it implies circuit at Crankshaft Position (CKP) sensor. For example: J33 (PIP S).
| Application | Pinpoint Test/Step |
|---|---|
| No Start & No Service Codes Present | A/1 |
| No Start & Code 211 Present | A/3 |
| No Start & Code Not Listed Present | A/1 |
| Code 213 (DPI High/Open Or SPOUT Fault) | F/1 |
| Code 214 (CID Open At PCM) | B/20 |
| Code 218 (IDM High/Open Or Left Coil Open) | C/1 |
| Code 222 With Erratic Start | B/1 |
| Code 222 With Normal Start | B/12 |
| Code 223 (DPI High/Open Or SPOUT Fault) | E/1 |
| Code 224 (Coil Circuit Fault) | D/1 |