On vehicles with 3ZZ-FE and 1ZZ-FE engines, speed control is carried out via the ETCS-i system.
On vehicles with 1CD-FTV engines, regulation is carried out via the Diesel EFI electronic fuel injection system.
The cruise control system ECU is integrated into the engine ECU.
The cruise control system is included in the standard SOL rating.
Fig. 1.82. Block diagram of the cruise control system
Fig. 1.83. Location of the main components of the cruise control system
Table 1.35. Cruise control system functions
Diagnostics
If the engine ECU in cruise control mode does not receive a speed signal within the set time or the cruise control is turned off (automatic shutdown) if the cruise control switch, brake light switch or vehicle speed signal is faulty, the engine ECU will immediately flash the cruise control indicator light on the instrument cluster five times to alert the driver of the system malfunction. Faults are assigned codes that are stored in the engine ECU.
Electronic DTCs can be read by connecting the Electronic Tester II to the DLC3 connector or by connecting the SST (09843-18040) to the Tc and CG contacts of DLC3 and counting how many times the cruise control indicator lamp flashes.
The Electronic Tester II can read 5-digit codes. The SST can read 2-digit codes by counting the number of times the cruise control indicator light flashes. For more information, see the Corolla Verso Repair Manual (P/N RM1100E).
Electronic DTC codes are listed below in Table 1.36.
Table 1.36. Electronic DTC codes
