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Toyota Corolla Repair Manual: Malfunction in water temperature receiver gauge

Toyota Corolla Repair Manual / Diagnostics / Combination meter / Malfunction in water temperature receiver gauge

Wiring diagram

Inspection procedure

Inspection procedure

1 Read value of handheld tester

  1. Check output value of ecm.
  1.  Connect the handheld tester to dlc3.
  2.  Turn the ignition switch to on and push the handheld tester main switch on.
  3.  Select the data list mode on the handheld tester.

2 Inspect combination meter assy

2 Inspect combination meter assy

(Reference) inspection using oscilloscope

(Reference) inspection using oscilloscope

  1.  check the input signal waveform.
  1.  Remove the combination meter with connectors still connected.
  2.  Connect the oscilloscope to the terminals c98 of combination meter assy and body ground.
  3.  Start engine.
  4.  Check the signal waveform.

3 Check harness and connector(between ecm and combination

3 Check harness and connector(between ecm and combination meter assy)

  1. Remove the combination meter.
  2. check the continuity between terminals 14 (thwo) of ecm and c98 of combination meter connector.

    Standard: there is continuity.

Check and replace ecm

Check and replace ecm

Malfunction in fuel receiver gauge
Wiring diagram Inspection procedere 1 Inspect fuel sender gage assy Disconnect the connector fuel sender gauge. check the float position between e and f and measure the resistance betw ...

Warning buzzer does not sound (key reminder warning, light reminder warning)
Wiring diagram Inspection procedere 1 Check buzzer Check that all of the warning buzzers sound. 2 Inspect front door courtesy lamp switch assy 3 Inspect unlock warning switch ...

Other materials:

Using the AUX port
To use the AUX port, connect a portable player, press the AUDIO button, then select AUX to display the audio control screen. Connecting a portable audio player ■Operating portable audio players connected to the multimedia system The volume can be adjusted using the vehicle's audio ...

Confirmation driving pattern
Connect the handheld tester or the obd ii scan tool to the dlc3.  record dtcs and the freeze frame data.  set the check mode using the handheld tester .  read the value on the misfire counter for each cylinder when idling. If the value is displayed on the misfire count ...

Terminals of ecu
1. Inspect tvip ecu Inspect the ecub, dome and ecuig fuses. disconnect the tvip ecu connector, and the continuity and voltage of check each terminal of the disconnected connector. Standard: If the result is not as specified, the vehicles side may malfunction. Reconnect ...

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