Page 223 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ANTI-LOCK BRAKING SYSTEM (ABS) 04-77

U014008，U014004-BODY CONTROL UNIT CAN FAULT

U014008-BODY CONTROL UNIT CAN DATA INTERRUPT
U014004-BODY CONTROL UNIT CAN MESSAGE TIMEOUT

Circuit Diagram

04

ABS
ECU Body control unit
A006 C035

CAN-H CAN-L CAN-H CAN-L
26 14 D19 D20

R-W L-Y

A303

17 18 R-W L-Y
C102

R-W L-Y

ftwxd041472

Diagnostic step

NOTICE

• To implement the following steps, ensure that ABS/ESP is grounded properly.
• Before conducting electric diagnosis, do refer to the reference circuit diagram
and the element information.

• Before conducting measurement, check the pins of connectors for rupture,
looseness and rust, and ensure that the pins are contacted properly.
• If the connection is good, check the sensor signal voltage when moving the
connector and harness. If a fault occurs, the voltage display on the diagnostic
instrument will change.

1 . DTC inspection

Page 223