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Toyota Corolla Repair Manual: 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 airfuel ratio was lean or rich, etc. At the time of the malfunction.

1 Check cooling system

  1. Check that there is a defect in the cooling system which causes overcool, such as abnormal radiator fan operation, modified cooling system and so on.

2 Inspect thermostat

2 Inspect thermostat

3 Check other dtc output(in addition to dtc p0128)

3 Check other dtc output(in addition to dtc p0128)

  1. Connect the handheld tester or the obd ii scan tool to the dlc3.
  2.  turn the ignition switch on and push the handheld tester or the obd ii scan tool main switch on.
  3.  select the item diagnosis / enhanced obd ii / dtc info / current codes.
  4.  read the dtcs.

Result:

Hint:

Hint

: if any other codes besides p0128 is output, perform the troubleshooting for those dtcs first.

Replace ecm

Replace ecm

Circuit description
If the engine coolant temperature (ect) does not reach 75c (167f) despite sufficient warm up time has elapsed. Dtc no Dtc detection condition Trouble area P01 ...

Oxygen sensor
Dtc p0130 oxygen sensor circuit malfunction (bank 1 sensor 1) Dtc p2195 oxygen sensor signal stuck lean (bank 1 sensor 1) Dtc p2196 oxygen sensor signal stuck rich (bank 1 sensor 1) ...

Other materials:

Problem symptoms table
Hint: use the table below to help determine the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts. 1. Headlamp and tail lamp 2. Front fog lamp system 3. Turn signal and hazard warni ...

Inspection procedure
Hint: handheld tester only: narrowing down the trouble area is possible by performing a/f control active test (heated oxygen sensor or other trouble areas can be distinguished). Perform active test using handheld tester (a/f control). Hint: a/f control is the active test which cha ...

Inspection
1. Power window system circuit 2. Inspect power window regulator master switch assy Inspect the master switch continuity. [Drivers switch (window unlock and lock)] Standard: [Front passengers switch (window unlock)] standard: [Front passengers switch (window lock)] standa ...

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