4.
Measure the resistance in each primary coil, referring to specification.(Component side)
Specification : Approx. 0.96 ± 10% (Ω) at 20℃(68℉)
No.1 & 4 cyl. : terminals 3 & 2
No.2 & 5 cyl. : terminals 3 & 1
No.3 & 6 cyl. : terminals 3 & 4
Ignition "OFF".
Disconnect ignition coil connector.
Visually/physically inspect the following items:
Damage, cracks and flashover.
Measure the resistance in each primary coil, referring to specification.(Component side)
Specification : Approx. 0.96 ± 10% (Ω) at 20℃(68℉)
No.1 & 4 cyl. : terminals 3 & 2
No.2 & 5 cyl. : terminals 3 & 1
No.3 & 6 cyl. : terminals 3 & 4
Measure the secondary coil resistance.
Measure the resistance between the high-voltage terminal for the No. 3 and No. 6 cylinders, between the high-voltage terminals for the No. 1 and No. 4 cylinders and between the high-voltage terminals for the No.2 and No.5 cylinders.
Be sure, when measuring the resistance of the secondary coil, to disconnect the connector of the ignition coil.
Specification : Approx. 12.5 ± 15% (kΩ) at 20℃(68℉)
Is resistance within the specification?
YES
▶ Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
▶ Check ignition coil for contamination, deterioration, or damage. Substitute with a known-good ignition coil and check for proper operation. If the problem is corrected, replace ignition coil and then go to "Verification of Vehicle Repair" procedure.
