LAUNCH X-431Diagun User's Manual
12
3 Use X-431Diagun to diagnose vehicles
3.1 Automotive Diagnosis Preparation and
Connection
3.1.1 X-431Diagun preparations
1. General Test Condition
z Ignition switch on.
z Battery voltage of the vehicle should be 11-14V or 18-30V, and the
rated working voltage of X-431Diagun Connector is 12V or 24V.
z Throttle should be closed.
z Ignition timing and idle speed should be within specification range,
water and transmission oil temperature is in normal working range
(water temperature is 90 – 110°C and transmission oil temperature is 50
– 80°C).
2. Select Test Connector
X-431Diagun is armed with an OBDⅡ 16PIN connector. Select the
corresponding connector (optional) when testing a vehicle with non-OBDⅡ
16PIN DLC.
3.1.2 TF Card Installation
a
b
c
d
Figure 3-1 TF Card Installation
Installation steps:
1) Open the leather cover, shown in 3-1a.
2) Insert the TF card into the X-431Diagun TF card slot
perpendicularly. Make sure is fully inserted in the right place
and with the face printed "micro" upward, refer to Figure 3-1b
and 3-1c.
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