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Toyota Corolla Repair Manual: Ecm power source circuit

Toyota Corolla Repair Manual / Diagnostics / Sfi system / Ecm power source circuit

Inspection procedure
Hint: this dtc chart is on the premise that the engine is cranked normally. If the engine is not cranked, proceed to the problem symptoms table on page 05Ц42. Read freeze frame data using t ...

Circuit description
When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm. ...

Other materials:

Inspection
1. Inspect inner rear view mirror assy Inspect the electro chromic inner mirror operation.  Connect the positive (+) lead from the battery to terminal 1 and negative (Ц) lead to terminal 2. ) Attach black colored tape to the forward sensor to prevent it from sensing.   ...

Replacement
1. Remove engine under cover rh 2. Remove fan and generator v belt 3. Remove generator assy Disconnect the wire clamp from the wire clip on the rectifire end frame.  remove the rubber cap and nut, and disconnect the alternator wire.  disconnect the alternator connecto ...

Rear combination lamp assy lh
Replacement Using a clipremover, remove the 2 clips and disconnect the luggage compartment trim cover lh. Disconnect the connector and remove the 3 nuts. Pull out the rear combination light assy lh to the back of the vehicle, and remove. ...

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