Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Different Diameter Tire (C134800)

DESCRIPTION

If the hybrid vehicle control ECU receives a signal from the skid control ECU that the AWD system is malfunctioning, the hybrid vehicle control ECU outputs this DTC.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Note

C134800

Different Diameter Tire

The vehicle is being driven in a straight line at a constant speed of 30 km/h (19 mph) or more, and the wheel speeds differ between front and rear significantly.

(1 trip detection logic)

  • Tire and wheel size
  • Tire pressure
  • Speed sensor circuit
  • Hybrid vehicle control ECU

Does not come on

Master Warning:

Does not come on

SAE Code:

C1348

PROCEDURE

1.

CHECK TIRES

(a) Check the tire sizes to ensure that the front and rear tire sizes are not different.

Click here

HINT:

If different tire sizes are discovered, replace the tires so that the tire sizes are the same on all 4 wheels.

(b) Adjust the air pressure in the tires.

Click here

NEXT

2.

RECONFIRM DTC

(a) Clear the DTCs.

Powertrain > Hybrid Control > Clear DTCs

(b) Drive the vehicle at a speed of 30 km/h (19 mph) or more.

(c) Check if the same DTC is output.

Powertrain > Hybrid Control > Trouble Codes

(d) Check that no speed sensor DTCs are output.

Chassis > Brake/EPB > Trouble Codes

HINT:

  • If C134800 and electronically controlled brake system DTCs are output simultaneously, check and repair the trouble areas in the electronically controlled brake system.

    Click here

  • When a DTC has been stored, the vehicle condition when the DTC was stored can be determined from the freeze frame data.
    • Hybrid Control System:

      Click here

    • Electronically Controlled Brake System:

      Click here

Result

Proceed to

DTC C134800 and speed sensor DTC are not output.

A

Speed sensor DTC is output.

B

DTC C134800 is output.

C

A

USE SIMULATION METHOD TO CHECK

B

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

C

REPLACE HYBRID VEHICLE CONTROL ECU

    READ NEXT:

     Brake Switch "A"/"B" Signal Cross Coupled (P05042B)

    DESCRIPTION The stop light switch assembly is a duplex system that transmits two signals: STP and ST1-. These two signals are used by the hybrid vehicle control ECU to monitor whether or not the brake

     System Voltage (BATT) Circuit Short to Ground or Open (P056014)

    DESCRIPTION Auxiliary battery power is supplied to the BATT terminal of the hybrid vehicle control ECU in order to store DTCs and freeze frame data. Even if the ignition switch is turned off, back-up

     Brake Switch "A" Circuit Open (P057113)

    DESCRIPTION When the brakes are applied by the dynamic radar cruise control system, the skid control ECU (brake booster with master cylinder assembly) operates the stop light switch assembly (stop lig

    SEE MORE:

     Removal

    REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL) Procedure Part Name Code 1 INTAKE MANIFOLD 17111 - - - 2 KNOCK CONTROL SENSOR 89615 - - CAUTION / NOTICE / HINT NOTICE: This procedure includes the remova

     Power Steering ECU Communication Stop Mode

    DESCRIPTION Detection Item Symptom Trouble Area Power Steering ECU Communication Stop Mode Communication stop for "Power Steering (EPS)" is indicated on the "Communication Bus Check" screen of the GTS. Click her

    © 2020-2024 Copyright www.tcorollacross.com