Toyota Corolla (E120): Inspection procedure
Hint
: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air–fuel ratio was lean or rich, etc. At the time of the malfunction.
1 Check other dtc output(in addition p0121)
- Connect the hand–held tester or the obd ii scan tool to the dlc3.
- turn the ignition switch on and push the hand–held tester or the obd ii scan tool main switch on.
- select the item ”diagnosis / enhanced obd ii / dtc info / current codes”.
- read the dtcs.
Result:

Hint
: if any other codes besides p0121 is output, perform the troubleshooting for those dtcs first.


Go to relevant dtc chart
Other materials:
Heater & air conditioner
Preparation
Sst
Recomended tools
Equipment
Lubricant
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Body dimension drawings
Engine compartment
Body opening areas (side view: front)
Body opening areas (side view: rear)
Sedan
Body opening areas (rear view)
Sedan
Under body
Under body
Front suspension crossmember
Front suspension crossmember
...
Replacement
1. Disconnect battery negative terminal
2. Remove engine under cover rh
3. Remove starter assy
Disconnect the starter connector.
open the terminal cover.
remove the nut, then disconnect the starter wire.
remove the 2 bolts, then remove the starter.
4. Install starter a ...


