Mf1a Transfer / 4wd / Awd

Diagnostic Trouble Code Chart

~1min read
DIAGNOSTIC TROUBLE CODE CHART ACTIVE TORQUE CONTROL 4WD SYSTEM

DTC Code

Detection Item

Trouble Area

See page

C1241/94

Low Power Supply Voltage

1. Battery

2. ECU-IG1 fuse

3. Wire harness and connector (IG1 circuit, GND circuit)

4. Brake control system

5. CAN communication system

6. AWD control ECU

C1245/93

Malfunction in Deceleration Sensor

1. Brake control system (deceleration sensor circuit)

2. CAN communication system

3. AWD control ECU

C1280/82

Engine Circuit Malfunction

1. SFI system

2. AWD control ECU

C1296/96

ABS Malfunction

1. Brake control system (speed sensor circuit)

2. CAN communication system

3. AWD control ECU

C1298/98

Linear Solenoid Circuit

1. 4WD fuse

2. Wire harness and connector

3. Electromagnetic control coupling

4. AWD control ECU

C1299/99

Cancellation of 4WD Control

1. Tire size

2. AWD control ECU

U0073/86

Control Module Communication Bus OFF

1. CAN communication system

U0100/85

Lost Communication with ECM / PCM "A"

1. CAN communication system

U0129/83

Lost Communication with Brake System Control Module

1. CAN communication system

Test yourself

A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.