Engine does not Start (08/2010 - 08/2011): Description
- ENGINE START SYSTEM OPERATION
- When the engine switch is pressed with the brake pedal depressed and the shift lever in P, the main body ECU determines that it is an engine start request.
- The certification ECU (smart key ECU assembly) and other ECUs perform key verification via the LIN communication line. The engine switch indicator light illuminates in green.
- The main body ECU activates the IG1 No. 3 relay, ACC relay and integration relay (IG2 relay).
- The certification ECU (smart key ECU assembly) outputs a steering unlock signal. The signal is sent to the steering lock ECU via the LIN communication line.
- The main body ECU sends an engine start request signal to the ECM.
- The main body ECU deactivates the ACC relay until the ECU detects an engine start.
- The ECU reactivates the ACC relay and turns off the engine switch indicator light.
Symbols of Main Body ECU Signals SSW1/SSW2 Engine switch on (ACC), on (IG) signal IG1D IG1 No. 3 relay operation signal ACCD ACC relay operation signal IG2D Integration relay (IG2 relay) operation signal STP Stop light switch signal P Shift lock signal TACH Engine start detection signal STSW Starter activation request signal ACCR ACC cut request signal