Toyota Corolla Repair Manual: Inspection procedure
Hint
:
- if different dtcs related to different systems that have terminal e2 as the ground terminal are output simultaneously, terminal e2 may be open.
- 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 Inspect heated oxygen sensor(heater resistance)
- Disconnect the h5 or h8 heated oxygen sensor connector.
- measure the resistance between the terminals of the heated oxygen sensor connector.
Standard:
- Reconnect the heated oxygen sensor connector.
2 Inspect efi relay
- Remove the efi relay from the engine room r/b.
- check for continuity in the efi relay.
Standard:
- Reinstall the efi relay.
3 Inspect ecm(ht1a or ht1b voltage)
- Turn the ignition switch on.
- measure the voltage between the applicable terminals of the e4 and e5 ecm connectors.
Standard:
4 Check harness and connector(heated oxygen sensor – ecm, heated oxygen sensor – efi relay)
- Check the harness and connector between the ecm and heated oxygen sensor connectors.
- Disconnect the h5 or h8 heated oxygen sensor connector.
- Disconnect the e4 or e5 ecm connector.
- Check the resistance between the wire harness side connectors.
Standard (check for open):
Standard (check for short):
- Reconnect the heated oxygen sensor connector.
- Reconnect the ecm connector.
- check the harness and connector between the heated oxygen sensor connector and efi relay.
- Disconnect the h5 or h8 heated oxygen sensor connector.
- Remove the efi relay from the engine room r/b.
- Check the resistance between the wire harness side connectors.
Standard (check for open):
Standard (check for short):
- Reconnect the heated oxygen sensor connector.
- Reinstall the efi relay.
Replace ecm
Circuit description
Refer to dtc p0130
Hint:
the ecm provides a pulse width modulated control circuit to adjust current
through the heater. The heated
oxygen sensor heater circuit uses a relay on the b+ side of the ...
Mass or volume air flow circuit
Dtc p0100 mass or volume air flow circuit
Dtc p0102 mass or volume air flow circuit
low input
Dtc p0103 mass or volume air flow circuit
high input
Circuit description
The maf (mass air flow) sen ...
Other materials:
Message Settings
1 Display the “Phone/Message Settings” screen. 2 Select “Messaging Settings”.
3 Select the desired item to be set.
1 Set automatic message transfer on/off.
2 Set automatic message readout on/off.
3 Set the SMS/MMS notification popup on/off.
4 Set the e-mail notification popup on/off.
5 Set add ...
Although system is powered,cd cannot be played
Wiring diagram
Inspection procedure
1 Check if a proper cd is inserted
Check that a proper cd is inserted.
Make sure that the cd is a normal audio cd, and that there is no
deformation, flaw, stain, burr
and other defects on the cd.
Standard: normal audio cd.
Reference:
...
Replacement
1. Remove proportioning valve assy
Using sst, disconnect the 5 brake tubes from the proportioning
valve assy.
Sst 09023–00100
Remove the 2 bolts and proportioning valve assy from the
body.
2. Install proportioning valve assy
Install the proportioning valve assy wit ...