Continuity Reference

2007 BRAKES Brake Control - Sequoia

Terminals 3 and 4

Continuity b. Apply battery positive voltage between terminals 1 and 2.

c. Check continuity between terminals.

CONTINUITY REFERENCE

Terminals 3 and 4

Open

NG: REPLACE INHIBIT RELAY

2002 Toyota Sequoia Relay Diagram

Fig. 72: Inspecting Inhibit Relay OK: GO TO Next Step 3. CHECK HARNESS AND CONNECTOR (INHIBIT RELAY - SKID CONTROL ECU) NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE SKID CONTROL ECU DTC C1337/37 DIFFERENT DIAMETER TIRE MALFUNCTION

2007 BRAKES Brake Control - Sequoia

DESCRIPTION

Skid control ECU measure the speed of each wheel by receiving signals from speed sensor. These signals are used for recognizing all 4 wheels are operating properly. Therefore, all wheel signals must be equal.

DTC TROUB

LE DETECTION CONDITION

DTC No.

DTC Detecting Condition

Trouble Area

C1337/37

1 or 2 tires of different size are used for driving.

Tire size

INSPECTION PROCEDURE

INSPECTION PROCEDURE

1. CHECK TIRE SIZE

a. Check tire size and condition of all 4 wheels.

NG: REPLACE TIRES SO THAT ALL 4 TIRES ARE SAME IN SIZE OK: GO TO Next Step

2. CHECK SPEED SENSOR

NG: REPLACE SPEED SENSOR OK: GO TO Next Step

3. CHECK SPEED SENSOR ROTOR

NG: REPLACE SPEED SENSOR ROTOR OK: GO TO Next Step

4. CHECK HARNESS AND CONNECTOR (SPEED SENSOR - SKID CONTROL ECU) NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE SKID CONTROL ECU DTC C1340/47 CENTER DIFFERENTIAL LOCK CIRCUIT DESCRIPTION

This circuit sends the signal to the ECU by detecting that the transfer center differential is in the "LOCK" position.

DTC TRO

>UBLE DETECTION CONDITION

DTC No.

DTC Detecting Condition

Trouble Area

• Center diff. lock position switch

2007 BRAKES Brake Control - Sequoia

C1340/47

Center cliff, lock position switch signal does not change

• Center diff. lock position switch circuit

• Center diff. lock Indicator light circuit

• Translate ECU

WIRING DIAGRAM

2006 Toyota Differential Diagram

2007 BRAKES Brake Control - Sequoia

Fig. 73: Center Differential Lock - Wiring Diagram (1 Of 2)

2006 Toyota Differential Diagram
Fig. 74: Center Differential Lock - Wiring Diagram (2 Of 2) INSPECTION PROCEDURE

1. CHECK CENTER DIFFERENTIAL LOCK SYSTEM OK: Center differential lock operation is normal.

NG: REPAIR OR REPLACE ONE TOUCH 2-4 SELECTOR SYSTEM OK: GO TO Next Step

2. CHECK CENTER DIFFERENTIAL LOCK INDICATOR LIGHT

a. Turn the ignition switch to the ON position.

b. Set the transfer to the L4 position.

c. Check that pressing the center differential lock switch locks the differential and turns the lock indicator on.

Indicator light: ON/OFF or OFF/ON

When the center differential cannot be shifted to LOCK smoothly, the center differential lock indicator light will blink.

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Responses

  • fred
    How to wire the locking differantial ecu on a toyota?
    7 years ago
  • Julia
    How do i troubleshoot c1340 in 2006 toyota sequoia?
    3 years ago

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