Toyota Corolla Repair Manual: Inspection procedure
1 Inspect dlc3 terminal voltage
- Turn the ignition switch to on.
- measure voltage between terminals 13 (tc) and 4 (cg) of
dlc3.
Ok: voltage: 10 – 16 v
2 Check harness and connector(between cruise control ecu assy and dlc3)
- Check for open and short circuit in harness and connector between cruise control ecu assy and dlc3
Check and replace cruise control ecu assy
Circuit description
This circuit sends a signal to the cruise control ecu assy that dtc output is
required.
Wiring diagram
...
Other materials:
Replacement
1. Remove hood sub–assy
2. Remove cylinder head cover no.2
3. Remove battery
4. Remove battery carrier
Remove the 4 bolts and battery carrier.
5. Remove air cleaner assembly with hose
6. Remove floor shift cable transmission control shift
Remove the nut from the control shaft ...
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.
If dtc p0441 (purge flow), p0446 (vsv for ccv), p0451, p0452 or p0453
(evaporative pressure
sensor) is output with dtc p0442 or p0456, ...
Diagnostic trouble code chart
Notice:
when removing the part, turn the ignition switch to off.
Hint:
using sst 09843–18040, it connect the terminal tc and cg of dlc3.
If any abnormality is not found when inspecting parts, inspect the ecu and
ground points for poor contact.
If a malfunction code is displayed during t ...