Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Ignition coil primary/secondary
circuit
Toyota Corolla (E120): Ignition coil primary/secondary circuit
Dtc p0351 ignition coil ”a” primary/secondary circu
Dtc p0352 ignition coil ”b” primary/secondary circuit
Dtc p0353 ignition coil ”c” primary/secondary circuit
Dtc p0354 ignition coil ”d” primary/secondary circuit
Other materials:
Circuit description
In the diagram below, when the engine is cranked, current flows from terminal
st2 of the ignition switch to
the starter relay coil and also current flows to terminal sta of the ecm (sta
signal).
When the sta signal and ne signal are input to the ecm, tr is turned on, current
flows to the c ...
Fuel
Service data
Torque specification
Emission control
Service data
...
Inspection
1. Cooling fan relay
Inspect the cooling fan relay continuity.
Using an ohmmeter, check that there is continuity
between terminals 1 and 2.
If there is no continuity, replace the relay.
Check that there is no continuity between terminals
3 and 5.
If there is conti ...