Page 259 - Workshop Manual - Tunland (2017)

DIAGNOSTICS - REVERSE RADAR SYSTEM 04-121

Check whether the result is normal?

Yes> go to step 3
No> replace reverse switch

3 . Check the harness and connector (ignition switch-fuse)
(a) Ignition Switch: OFF. 04

(b) Measure the electrical resistance between
indoor fuse box F31 (7.5A) and the ignition
swith.
Standard electrical resistance (check
whether there existent an open circuit)

Multimeter connection Standard value
F31 (7.5A) - Ignition
switch ＜2Ω

Check whether the result is normal?

Yes> go to step 4
No > Maintenance or replace harness.

4 . Check the harness and connector (fuse- reverse switch)

(a) Ignition Switch: OFF.
(b) Disconnect reverse switch connector K002.

(c) Measure the electrical resistance between
reverse switch connector K002(1) and indoor
fuse box F31（7.5A）.

Standard electrical resistance (check
whether there existent an open circuit)

Multimeter connection Standard value
F31(7.5 A） - K002 ＜2Ω
（1）

Check whether the result is normal?

Yes> go to step 5