Check for spark from all ignition wires when the starter is engaged. It is important to check for spark in all cylinders to identify problems with the ignition coil input and output signals.
Check for spark from all high voltage ignition wires when the starter is engaged.
Measure the resistance of the spark plug wires (30 kΩ). Replace any spark plug wires that show resistance greater than the specified value. Check the signals from the ECM to the ignition coil. It is recommended to use an oscilloscope when checking the ECM spark signals, since many intermittent faults may not be detected when using a voltmeter. If the ECM spark signals are OK, the fault may be in the ignition coil.
Check the functionality of the crankshaft position sensor, for which:
- measure the resistance between terminals 1 and 2 of the crankshaft position sensor connector (400-600 Ohm) with the connector disconnected;
- measure the voltage between terminals 1-3, 2-crankshaft position sensor connector and 1 (crankshaft position sensor connector) - G103 ("mass"). In all cases, the voltage should be within 1.3-1.5 V (2.4-2.7 V).
Disconnect the ignition coil connector. When the starter is turned on, measure the voltage at terminals A and C of the ignition coil connector (0.2-2.0 V).
Check the integrity of the wires between terminals C (ignition coil connector) and A19 (eCM connector), and also between terminals A (ignition coil connector) and A18 (eCM connector).
Check the power supply to terminal B of the ignition coil (pink wire) via connectors S201 C205 from fuse F7 (15 A) (fuse box) using a test light (probe).