Page 195 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ANTI-LOCK BRAKING SYSTEM (ABS) 04-49

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,
04
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
(a) Ignition switch: OFF.
(b) Connect the diagnostic apparatus.
(c) Use the diagnostic apparatus, read the fault code.
(d) Confirm whether there is a fault code related to yaw rate sensor (yaw velocity sensor)
fault?
Is the inspection result normal?

YES>To step 2.
NO>Intermittent trouble exists.

2 . Check fuse.

(a) Ignition switch: OFF.

(b) Check fuse in the indoor fusebox:
• F30(7.5A)

Is the inspection result normal?

YES>To step 3.
NO>replace fuse.

3 . Check yaw rate sensor (yaw velocity sensor ) power supply circuit.

(a) Ignition switch: OFF.
(b) Disconnect the battery negative cable.

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