Dtc C1248/48 Open Circuit In Rear Differential Lock

Brake. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Brake Control Dynamic Control Systems. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK TERMINAL VOLTAGE (EXI2 TERMINAL)

RECONFIRM DTC

DTC C1248/48 Open Circuit in Rear Differential Lock


DESCRIPTION


DTC Code
DTC Detection Condition
Trouble Area
C1248/48
At a vehicle speed of 50 km/h (31 mph) or more, 3 seconds or more elapse after the rear differential changes from free to lock.
HINT:
For vehicles without rear differential lock, this DTC may be stored due to an EXI2 terminal circuit malfunction.
  1. EXI2 terminal circuit
  2. Skid control ECU (Brake actuator assembly)

WIRING DIAGRAM


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1248/48 Open Circuit In Rear Differential Lock


INSPECTION PROCEDURE

NOTICE:
  1. Before disconnecting the connector, make sure that there are no problems with the connection.
  2. After disconnecting the connector, make sure that the connector case and terminals are not deformed or corroded.
1.CHECK TERMINAL VOLTAGE (EXI2 TERMINAL)
Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1248/48 Open Circuit In Rear Differential Lock

  1. Turn the ignition switch off.

  1. Disconnect the skid control ECU (brake actuator assembly) connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A13-22 (EXI2) - Body ground
    		Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU [Brake Actuator Assembly])


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.RECONFIRM DTC

  1. Clear the DTC (HILUX_TGN26 RM000000XHV0CFX.html).

  1. Turn the ignition switch off.

  1. Start the engine.

  1. Drive the vehicle at a speed of 50 km/h (31 mph) or more for 3 seconds or more.

  1. Check if the same DTC is output (HILUX_TGN26 RM000000XHV0CFX.html).

Result
Result
Proceed to
DTC output
A
DTC not output
B


B
USE SIMULATION METHOD TO CHECK (HILUX_TGN26 RM000004QR7004X.html)
A

REPLACE BRAKE ACTUATOR ASSEMBLY (HILUX_TGN26 RM0000010K0019X.html)