Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS

NOTICE:

  • Operation history is stored in the RAM or EEPROM of the certification ECU (smart key ECU assembly). As the cause of a malfunction stored in the RAM will be cleared when the cable is disconnected from the negative (-) auxiliary battery terminal, do not disconnect the cable from the negative (-) auxiliary battery terminal before checking and recording are complete.
  • If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read and saved, the operation history information could be lost.
  • The operation history function uses the current system time of the GTS and the time counter inside the controlling ECU to calculate the time shown in the operation history. For this reason, before reading the operation history, first make sure that the GTS system clock is accurately set to the current time.

VEHICLE CONTROL HISTORY (ROB)

HINT:

The certification ECU (smart key ECU assembly) stores the vehicle control history (RoB) of the smart key system and it can be read using the GTS.

(a) Read the Vehicle Control History (RoB) according to the display on the GTS.

Body Electrical > Smart Key > Utility

Tester Display

Vehicle Control History (RoB)

Code

Item List

Item Description

Note

X0A10

Auto Entry Mode Switch History

The certification ECU mode changed when the GTS was connected.

-

X0A11

Customize (Auto Entry Cancel)

The smart functionality was canceled via customization.

-

X0A12

Engine Start (Inactive)

Engine could not be started because steering lock status was unlock not confirmed.

-

X0A13

Engine Start

Engine could not be started because immobiliser was set.

-

X0A14

Radio Wave Interference (RF Reception Not Available)

An attempt was made to start the engine without a key.

-

X0A15

Engine Start Inactive (Steering Lock System)

Engine could not be started because steering lock lever was engaged.

-

X0A18

Auto Entry Wireless Operation History (Lock/Unlock)

Lock/unlock was performed by wireless operation.

-

X0A19

Auto Entry Wireless Operation History (Open/Close)

Power slide door/back door was opened/closed by wireless operation.

-

X0A1A

Warning Operation History

Warning operation was performed by a function of the certification ECU.

-

X0A1B

Registration Function (Reason for Non-operation)

The reason that key registration failed.

-

X0A1C

Radio Wave Interference (RF Signal Received)

Smart system did not operate due to effects of radio frequency interference.

-

X0A1D

Auto Entry Lock (Inactive)

The reason that entry lock did not operate.

-

X0A1E

Auto Entry Unlock (Inactive)

The reason that operations other than entry lock operation did not operate correctly.

-

HINT:

Some items may not be displayed depending on the specifications of the vehicle.

(b) Read the Vehicle Control History (RoB) according to the display on the GTS.

Body Electrical > Power Source Control > Utility

Tester Display

Vehicle Control History (RoB)

Code

Item List

Item Description

Note

X0A00

Cause Details of Engine Start / READY ON Failure

The reason that engine didnot start.

-

X0A01

Cause Details of Engine Stop / READY OFF in IG ON

The reason that enginestalled or engine stopped.

-

X0A02

Cause Details of Leave ACC ON / IG ON

The reason that vehicle power source turned off automatically.

-

HINT:

Some items may not be displayed depending on the specifications of the vehicle.

SYMPTOM SIMULATION

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