2. DIAGNOSTICS ITEM 1
4F21 : SELECT HORN SIGNAL OPERA-
TION.
Keep both LOCK/ARM and UNLOCK/DISARM
buttons pressed for more than 1.5 seconds.
:
Does the horn chirp one time?
: Go to step 4F22.
: Replace keyless entry control module.
<Ref. to 6-2 [W10A1].>
4F22 : CHECK HORN SIGNAL OUTPUT
SIGNAL.
1) Disconnect connector from keyless entry con-
trol module.
2) Measure voltage between keyless entry control
module connector (B176) and chassis ground.
Connector & terminal
(B176) No. 12 (+) ? Chassis ground (?):
B6M0958A
:
Is the voltage more than 10 V?
: Go to step 4F23.
: Go to step 4F26.
4F23 : CHECK HORN RELAY.
1) Remove horn relay from main fuse box.
2) Check continuity between horn relay terminals.
Terminals
No. 1 ? No. 2:
B6M1348B
:
Does continuity exist?
: Replace horn relay.
: Go to step 4F24.
4F24 : CHECK HORN RELAY.
Check continuity between horn relay terminals.
Terminals
No. 3 ? No. 4:
B6M1349B
:
Does continuity exist?
: Go to step 4F25.
: Replace horn relay.
63
[T4F2] 6-2DIAGNOSTICS
4. Keyless Entry System