Push Button Start Function

PROBLEM SYMPTOMS TABLE - PUSH BUTTON START FUNCTION

Symptoms	Suspected Area
Engine does not start.	Check for DTCs in the push button start. Check for DTCs in the smart key system. Check that the engine switch is turned on. Check cranking operation. (If cranking operation is possible, see "Engine does not start due to the engine immobilizer" in this table.) Check "SHIFT P SIG" in the DATA LIST of the power source control ECU and confirm that the shift signal is normal. Check whether the steering wheel is locked or unlocked. (If it is locked, see "Steering wheel cannot be unlocked" in the steering lock function table.) Check the output from the SLP terminal of the steering lock ECU. Check the output signal from the ST SW of the certification ECU (DTC B2275). Replace the power source control ECU.
Engine does not start due to the engine immobilizer.	Check that the "L CODE MACH" item in the DATA LIST of the certification ECU displays OK. (If it displays NG, replace the steering lock ECU or ID code box.) Check that the "ENG START REQ" item in the DATA LIST of the certification ECU displays YES. (If it displays NO, replace the certification ECU.) Check that the "S CODE MACH" item in the DATA LIST of the certification ECU displays OK. (If it displays NG, replace the certification ECU or ID code box.) Replace the ID code box.

Symptoms

Suspected Area

Engine does not start.

Check for DTCs in the push button start.
Check for DTCs in the smart key system.
Check that the engine switch is turned on.
Check cranking operation. (If cranking operation is possible, see "Engine does not start due to the engine immobilizer" in this table.)
Check "SHIFT P SIG" in the DATA LIST of the power source control ECU and confirm that the shift signal is normal.
Check whether the steering wheel is locked or unlocked. (If it is locked, see "Steering wheel cannot be unlocked" in the steering lock function table.)
Check the output from the SLP terminal of the steering lock ECU.
Check the output signal from the ST SW of the certification ECU (DTC B2275).
Replace the power source control ECU.

Engine does not start due to the engine immobilizer.

Check that the "L CODE MACH" item in the DATA LIST of the certification ECU displays OK. (If it displays NG, replace the steering lock ECU or ID code box.)
Check that the "ENG START REQ" item in the DATA LIST of the certification ECU displays YES. (If it displays NO, replace the certification ECU.)
Check that the "S CODE MACH" item in the DATA LIST of the certification ECU displays OK. (If it displays NG, replace the certification ECU or ID code box.)
Replace the ID code box.