Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Tvip ecu communication circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check tvip ecu
- Check that the operation of the tvip function is normal.
Hint
: with this inspection, the tvip ecu cpu can be diagnosed if it works normally or not.
2 Check wire harness (tvip ecu integration relay)
- Disconnect the tvip ecu and integration relay connectors.
- check the continuity between the terminal of the tvip ecu connector and integration relay connectors, as shown in the illustration and table.
Standard:
Check and replace tvip ecu
Other materials:
Overhaul
1. Remove generator pulley
Sst 09820–63010 (09820–06010, 09820–06020)
Hint:
Hold sst 1 – a with a torque wrench, and tighten sst 1
– b clockwise to the specified torque.
Torque: 39 nvm (398 Kgf·cm, 29 ft·lbf)
Notice:
check that sst is secured to the rotor shaft.
...
How to proceed with troubleshooting
Hint:
troubleshooting of the wireless door lock control system is based on
the premise that the power door
lock system is operating normally. Therefore, before troubleshooting the
wireless door lock control system,
first make certain that the the power door lock system is operating
...
Circuit description
In the diagram below, when the engine is cranked, current flows from terminal
st2 of the ignition switch to
the starter relay coil and also current flows to terminal sta of the ecm (sta
signal).
When the sta signal and ne signal are input to the ecm, tr is turned on, current
flows to the c ...