FUEL INJECTION SYSTEM8-63Fault code No. 36 Symptom Open circuit detected in the primary lead of the cylinder-#4 ignition coilDiagnostic code No. 33 Cylinder-#4 ignition coilOrder Item/components and probablecause Check or maintenance job Reinstatementmethod1Connections• Cylinder-#4 ignition coil coupler• Main wire harness ECU coupler• Sub-wire harness 1 coupler• Check the couplers for any pinsthat may be pulled out.• Check the locking condition ofthe couplers.• If there is a malfunction, repair itand connect the couplersecurely.Starting theengine andoperating it atidle.2Open or short circuit in wire harnessand/or sub-wire harness 1.• Repair or replace if there is anopen or short circuit.• Between cylinder-#4 ignitioncoil coupler and ECU coupler.(Red/Black–Red/Black)(Gray/Green–Gray/Green)3Defective cylinder-#4 ignition coil. • Execute the diagnostic mode.(Code No.33)• Test the primary and secondarycoils for continuity.• Replace if defective.Refer to "CHECKING THEIGNITION COILS" on page 8-103.
