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Pinpoint Test D: Code 215 Or 216

  1. Check For Spark  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. If spark is not consistent, go to step 2).
  2. Check Spark Plugs & Wires  Check spark plug wires for insulation damage, looseness and shorts. Remove and check spark plugs for damage, wear, and incorrect plug gap. If spark plugs and wires are okay, reinstall plugs and wires, and go to step 3). If spark plugs and wires are defective, replace as necessary.
  3. Check For Power At Coil  Turn ignition off. Connect diagnostic cable to breakout box. Connect negative lead to battery. Set diagnostic cable box switch to 4/6 CYLINDER position. Install right (Blue) coil tee. Use EI (High Data Rate) 4 overlay on breakout box. Set DVOM on DC voltage scale. Turn ignition on. Measure voltage between J5 (COIL PWR) and J7 (B-) at breakout box. If voltage is more than 10 volts, go to step 4). If voltage is 10 volts or less, repair open in COIL PWR circuit.
  4. Check C1 Voltage At Coil Pack  Turn ignition on. Measure voltage between J3 (C1C) and J7 (B-) at breakout box. If voltage is greater than 10 volts, go to step 5). If voltage is 10 volts or less, go to step 12).
  5. Check C2 Voltage At Coil Pack  Leave ignition on. Measure voltage between J6 (C2C) and J7 (B-) 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 14).
  6. Check C1 Voltage At ICM  Turn ignition off. Connect diagnostic cable tee to ICM and ICM wiring harness connector. Turn ignition on. Measure voltage between J53 (C1C) and J7 (B-) at breakout box. If voltage is greater than 10 volts, go to step 7). If voltage is 10 volts or less, repair open in C1 circuit.
  7. Check C2 Voltage At ICM  Leave ignition on. Measure voltage between J55 (C2I) and J7 (B-) at breakout box. If voltage is greater than 10 volts, go to step 8). If voltage is 10 volts or less, repair open in C2circuit.
  8. Check C1 At Coil Connector  Turn ignition off. Disconnect coil from diagnostic cable coil tee. Leave diagnostic cable tee connected to wiring harness coil connector. Turn ignition on. Measure voltage between J3 (C1C) and J7 (B-) at breakout box. If DC voltage is less than 0.5 volt, go to step 9). If voltage is 0.5 volt or greater, go to step 16).
  9. Check C2 At Coil Connector  Leave ignition on. Measure voltage between J6 (C2C) and J7 (B-) at breakout box. If DC voltage reading is less than 0.5 volt, go to step 10). If voltage is 0.5 volt or greater, go to step 17).
  10. Check C1 At Coil Connector While Cranking Engine  Connect incandescent test light between J1 (BAT+) and J3 (C1C). Connect positive lead of diagnostic cable to battery. Crank engine and observe test light. If test light blinks consistently, go to step 11). If test light does not blink consistently, repair open in C1 circuit.
  11. Check C2 At Coil Connector While Cranking Engine  Connect test light between J1 (BAT+) and J6 (C2C). Crank engine and observe test light. If test light blinks consistently, replace coil pack. If test light does not blink consistently, replace ICM.
  12. Check C1 For Short To Ground  Turn ignition off. Set DVOM ohm scale. Disconnect coil from coil tee. Leave diagnostic cable connected to wiring harness coil connector. Measure resistance between J7 (B-) and J3 (RC1C) at breakout box. If resistance is greater than 2000 ohms, replace right coil pack. If resistance is 2000 ohms or less, go to step 13).
  13. Turn ignition off. Disconnect ICM from diagnostic cable module tee. Leave diagnostic cable connected to wiring harness connector. Measure resistance between J7 (B-) and J3 (RC1C) at breakout box. If resistance is greater than 10,000 ohms, replace ICM. If resistance is 10,000 ohms or less, repair short to ground in C1 circuit and check ignition coil for damage.
  14. Check C2 For Short To Ground (Coil Disconnected)  Turn ignition off. Disconnect coil from coil tee. Leave diagnostic cable connected to wiring harness coil connector. Measure resistance between J7 (B-) and J6 (C2C) at breakout box. If resistance is greater than 2000 ohms, replace coil pack. If resistance is 2000 ohms or less, go to step 15).
  15. Check C2 Circuit (Coil & ICM Disconnected)  Turn ignition off. Disconnect ICM from wiring harness. Measure resistance between J6 (C2C) and J7 (B-) at breakout box. If resistance is greater than 10,000 ohms, replace ICM. If resistance is 10,000 ohms or less, repair short to ground in C2 circuit.
  16. Check C1 For Short To Power  Turn ignition off. Disconnect ICM from diagnostic cable module tee. Leave diagnostic cable connected to wiring harness connector. Set DVOM to DC voltage scale. Turn ignition on. Measure voltage between J3 (C1C) and J7 (B-) at breakout box. If DC voltage is less than 0.5 volt, replace ICM. If voltage is 0.5 volt or greater, repair short to power in C1 circuit.
  17. Check C2 For Short To Power  Turn ignition off. Disconnect ICM from wiring harness. Turn ignition on. Measure voltage between J6 (C2C) and J7 (B-) at breakout box. If DC voltage is less than 0.5 volt, replace ICM. If voltage is 0.5 volt or greater, repair short to power in C2 circuit.
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