Toyota Corolla Cross: Drive Start Control

DESCRIPTION

The drive start control is controlled by the ECM.

If the ECM determines that the shift lever and accelerator pedal are operated abnormally, engine output is restricted and, when necessary, a warning is displayed on the combination meter assembly.

CAUTION / NOTICE / HINT

HINT:

Even if the accelerator pedal position is maintained, the engine output may increase when driving uphill and decrease when driving downhill. This is due to the drive start control controlling the engine output, and is not a malfunction.

PROCEDURE

(a) Check if the customer operated the vehicle in a way that would cause the drive start control to operate.

• Pattern A (When all of the following conditions are met, control starts.)
  • The accelerator pedal is open by approximately 1/5 or more.
  • The shift lever is moved from P to any forward position D (other forward shift position) or R.

• Pattern B (When all of the following conditions are met, control starts.)
  • The accelerator pedal is open by approximately 1/5 or more.
  • The shift lever is moved from R to any forward position D (other forward shift position), any forward position D (other forward shift position) to R, or N to R.

HINT:

Operation may not be possible in certain situations.

• Items Controlled
  • Engine output is restricted.

• Deactivation Conditions
  • The accelerator pedal is released.
  • The shift lever is in P or N.

HINT:

• The restraint level for engine output differs for pattern A and pattern B.
• Engine output is corrected according to the slope incline when control is in operation.
• Control will not operate when TRC operation is stopped.
• Control will also not operate under the following conditions. (equipped models only)
  • When in auto LSD mode
  • When the transfer switch is operated to switch the status to L4
  • When the center differential is locked
  • When multi-terrain select is selected

B

SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE)

A

(a) Perform the Health Check using the GTS.

(b) Read the DTCs.

B

GO TO STEP 5

C

GO TO DTC CHART

A

(a) Start the engine.

(b) Read the value displayed on the GTS.

Standard:

CAUTION:

When performing a drive test, obey all speed limits and traffic laws.

HINT:

The data while driving can be stored by using the GTS data store function.

The stored data can be checked after driving.

NG

INSPECT FRONT OR REAR SPEED SENSOR

OK

(a) Start the engine.

(b) Read the value displayed on the GTS.

Standard:

CAUTION:

When performing a drive test, obey all speed limits and traffic laws.

HINT:

The data while driving can be stored by using the GTS data store function.

The stored data can be checked after driving.

OK

SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE)

NG

INSPECT AIRBAG ECU ASSEMBLY

(a) Inspect the park/neutral position switch assembly.

for 2WD: Click here

for AWD: Click here

B

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for 2WD: Click here for AWD: Click here

A

(a) Turn the ignition switch to ON.

(b) Read the value displayed on the GTS.

OK:

HINT:

For numerical values of Accelerator Position Sensor No.1 Voltage % and Accelerator Position Sensor No.2 Voltage %, refer to the Data List.

Click here

OK

SYSTEM NORMAL (GO TO PROBLEM SYMPTOM TABLE)

NG

REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY

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