Mazda MX-6 1998, Workshop Manual

Page: 1042 / 1282

TROUBLESHOOTING [EXTERIOR LIGHTING SYSTEM]
STEP INSPECTION
ACTION
Remove headlight relay.
Inspect headlight relay.
D- 0 9 -1 8 HEADLIGHT RELAY
INSPECTION
is headlight relay okay?
Yes Go to next step.
No
Replace headlight relay.
Remove TNS relay.
Inspect TNS relay.
et
0 9-18 TNS RELAY INSPECTION
Is TNS relay okay?
Yes With DRL: Go to next step.
Without DRL: Go to step 8.
No Replace TNS relay.
Remove driver’s side front scuff plate.
Remove driver’s side front side trim.
Measure voltage at terminal 4K at CPU
connector D of wiring harness.
Is voltage
B+?
Yes
Go to next step.
t a
No
Repair wiring harness between headlight high relay and
CPU.
n
4M 4K
4E 4C 4A
4N 4L 4 j| 4 H 4F 4D 4B
W 6 U 9 0 1 W M 0
Measure voltage at terminal 4E at CPU
connector D of wiring harness.
Is voltage
B+?
Yes Go to next step.
ta
No Repair wiring harness between headlight relay and CPU.
f l
4M 4K >
<
4E 4C 4A
4N 4L
4J I 4H
4F 4D 4B
W 6 U 9 0 1 W M 1
Measure voltage at terminal 4N at CPU
connector D of wiring harness.
Is voltage
B+?
Yes Go to step 9.
ta
No Repair wiring harness between TNS relay and CPU.
i
4M 4K 4E 4C 4A
4N 4L
4J I 4H
4F 4D 4B
W 6 U 9 0 1 W M 2
0 9 -0 1 J -2