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Pinpoint Test D: Code 215, 216, 217 Or 232

  1. Check For Spark During Cranking  Using a spark tester, check for spark at all spark plug wires while cranking. If spark is consistent on all spark plug wires, ignition system is okay. Go to H - EEC-IV TESTS W/O CODES article in the ENGINE PERFORMANCE Section. If spark is not consistent, go to step 2).
  2. Check Spark Plugs & Wires  Check spark plug wires for insulation damage, looseness, shorting and other damage. Remove and check spark plugs for damage, wear, carbon deposits and incorrect plug gap. Ensure connectors and plug wires are attached to coil pack. If spark plugs and wires are okay, reinstall plugs, and go to step 3). If spark plugs or wires are defective, service or replace damaged components as necessary.
  3. Check For PWR To Coil  With ignition off, connect EI diagnostic cable to breakout box. Connect left coil tee. Connect EI diagnostic cable negative lead to battery. Use EI "6" overlay on breakout box. Set EI cable box switch to 4/6 CYLINDER position. Set DVOM on 20-volt DC scale. With ignition on and engine off, measure voltage between J5 (COIL PWR) and J7 (BAT-) at breakout box. If DC voltage is greater than 10 volts, go to step 4). If voltage is 10 volts or less, repair open in COIL PWR circuit to coil.
  4. Check C1 At Coil Pack  With ignition on and engine off, measure voltage between J3 (C1C) and J7 (BAT-) at breakout box. If DC voltage is greater than 10 volts, go to step 5). If voltage is 10 volts or less, go to step 16).
  5. Check C2 At Coil Pack  With ignition on and engine off, measure voltage between J6 (C2C) and J7 (BAT-) at breakout box. If DC voltage is greater than 10 volts, go to step 6). If voltage is 10 volts or less, go to step 18).
  6. Check C3 At Coil Pack  With ignition on and engine off, measure voltage between J10 (C3C) and J7 (BAT-) at breakout box. If DC voltage is greater than 10 volts, go to step 7). If voltage is 10 volts or less, go to step 20).
  7. Check C1 At ICM  With ignition off, connect ICM tee to ICM and wiring harness connector. With ignition on and engine off, measure voltage at breakout box between J53 (C1I) and J7 (BAT-). If voltage is more than 10 volts, go to step 8). If voltage is 10 volts or less, repair open C1 circuit in harness.
  8. Check C2 At ICM  With ignition on and engine off, measure voltage between J55 (C2I) and J7 (BAT-) at breakout box. If DC voltage is greater than 10 volts, go to step 9). If voltage is 10 volts or less, repair open C2 circuit in harness.
  9. Check C3 At Coil Connector  With ignition on and engine off, measure voltage between J54 (C3I) and J7 (BAT-) at breakout box. If DC voltage is greater than 10 volts, go to step 10). If voltage is 10 volts or less, repair open C3 circuit in harness.
  10. Check C1 At Coil Connector  With ignition off, disconnect coil pack from coil tee. Leave EI diagnostic cable connected to wiring harness connector. With ignition on and engine off, measure voltage between J3 (C1C) and J7 (BAT-) at breakout box. If DC voltage is less than 0.5 volt, go to step 11). If voltage is 0.5 or greater, go to step 22).
  11. Check C2 At Coil Connector  With ignition on and engine off, measure voltage at breakout box between J6 (C2C) and J7 (BAT-). If DC voltage is less than 0.5 volt, go to step 12). If voltage is 0.5 volt or greater, go to step 23).
  12. Check C3 At Coil Connector  With ignition on and engine off, measure voltage at breakout box between J10 (C3C) and J7 (BAT-). If DC voltage is less than 0.5 volt, go to step 13). If voltage is 0.5 volt or greater, go to step 24).
  13. Check C1 At Coil Connector While Cranking  With ignition off, connect positive lead of EI diagnostic cable to battery. Connect a test light between J1 (BAT +) and J3 (C1C). Crank engine. If test light blinks consistently and brightly (one blink per revolution), go to step 14). If test light does not blink as specified, C1 circuit in module is open. Replace ICM.
  14. Check C2 At Coil Connector While Cranking  Connect a test light between J1 (BAT +) and J6 (C2C). Crank engine. If test light blinks consistently and brightly (one blink per revolution), go to step 15). If test light does not blink as specified, C2 circuit in module is open. Replace ICM.
  15. Check C3 At Coil Connector While Cranking  Connect a test light between J1 (BAT +) and J10 (C3C). Crank engine. If test light blinks consistently and brightly (one blink per revolution), input to coil pack is okay but high voltage output does not exist. Replace coil pack. If test light does not blink as specified, C3 circuit in module is open. Replace ICM.
  16. Check C1 For Short To Ground  With ignition off, set DVOM on 20-k/ohm scale. Disconnect coil from coil tee. Leave EI diagnostic cable connected to vehicle coil connector. Measure resistance between J7 (BAT-) and J3 (C1C) at breakout box. If resistance is greater than 2000 ohms, C1 circuit is open in coil. Replace coil pack. If resistance is 2000 ohms or greater, go to step 17).
  17. With ignition off, disconnect ICM from wiring harness. Measure resistance between J7 (BAT-) and J3 (C1C) at breakout box. If resistance is greater than 10,000 ohms, C1 circuit is shorted to ground internally. Replace ICM. If resistance is 10,000 ohms or less, repair short to ground in C1 circuit.
    NOTE: If C1 is shorted to ground, coil may also be damaged.
  18. Check C2 For Short To Ground  With ignition off, disconnect coil from coil tee. Leave EI diagnostic cable connected to wiring harness connector. Measure resistance between J7 (BAT-) and J6 (C2C) at breakout box. If resistance is greater than 2000 ohms, C2 circuit is open in coil. Replace coil pack. If resistance is 2000 ohms or less, go to step 19).
  19. With ignition off, disconnect ICM from wiring harness connector. Measure resistance between J7 (BAT-) and J6 (C2C) at breakout box. If resistance is greater than 10,000 ohms, C2 is shorted to ground internally. Replace ICM. If resistance is 10,000 ohms or less, repair short to ground in C2 circuit.
    NOTE: If C2 is shorted to ground, coil may also be damaged.
  20. Check C3 For Short To Ground  With ignition off, disconnect coil from coil tee. Leave EI diagnostic cable connected to wiring harness connector. Measure resistance between J7 (BAT-) and J10 (C3C) at breakout box. If resistance is greater than 2000 ohms, C3 circuit is open in coil. Replace coil pack. If resistance is 2000 ohms or less, go to step 21).
  21. With ignition off, disconnect ICM from wiring harness connector. Measure resistance between J7 (BAT-) and J10 (C3C) at breakout box. If resistance is greater than 10,000 ohms, C3 is shorted to ground internally. Replace ICM. If resistance is 10,000 ohms or less, repair short to ground in C3 circuit.
    NOTE: If C3 is shorted to ground, coil may also be damaged.
  22. Check C1 For Short To Power  With ignition off, disconnect ICM from diagnostic cable ICM tee. Leave EI diagnostic cable connected to wiring harness connector. Set DVOM to 20-volt DC scale. Measure voltage between J3 (C1C) and J7 (BAT-) at breakout box. If DC voltage reading is less than 0.5 volt, C1 is shorted to power internally. Replace ICM. If voltage is 0.5 volt or greater, repair short to power in C1 circuit.
  23. Check C2 For Short To Power  With ignition off, disconnect ICM from diagnostic cable ICM tee. Leave EI diagnostic cable connected to wiring harness connector. Measure voltage between J6 (C2C) and J7 (BAT-) at breakout box. If DC voltage reading is less than 0.5 volt, C2 is shorted to power internally. Replace ICM. If voltage is 0.5 volt or greater, repair short to power in C2 circuit.
  24. Check C3 For Short To Power  With ignition off, disconnect ICM from diagnostic cable ICM tee. Leave EI diagnostic cable connected to wiring harness connector. Measure voltage between J10 (C3C) and J7 (BAT-) at breakout box. If DC voltage reading is less than 0.5 volt, C3 is shorted to power internally. Replace ICM. If voltage is 0.5 volt or greater, repair short to power in C3 circuit.
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