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SIGNALING SYSTEM
ELEC
4. Voltage
SConnect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness side)
as shown.
Tester positive probe ! brown
Tester negative probe ! sky blue
1
2
SSet the main switch to “ON”.
SMeasure the voltage (12 V) of brown and
sky blue at the meter assembly coupler.
SIs the voltage within specification?
1
2
YES
The wiring circuit
from the main switch
to the meter light bulb
coupler is faulty and
must be repaired.
NO
This circuit is OK.
Replace the oil level
warning light bulb,
socket or both.
NO
EAS00802
5. The oil level warning light fails to come on.
1. Oil level warning light bulb and socket
SCheck the oil level warnig light bulb and sock-
et for continuity.
Refer to “CHECKING THE BULBS AND
BULB SOCKETS”
SAre the oil level warnig light bulb and socket
OK?
YES
Replace the oil level
switch.
NO
2. Oil level switch
SDrain the engine oil and remove the oil level
switch from the oil pan.
SCheck the oil level switch for continuity.
Refer to “CHECKING THE SWITCHES”.
SIs the oil level switch OK?
YES
Replace the oil level
relay.
NO
3. Oil level relay
SDisconnect the oil level relay from the cou-
pler.
SConnect the pocket tester (Ω 1) and bat-
tery (12 V) to the oil level relay terminals as
shown.
YES
Battery positive terminal ! brown
Battery negative terminal ! black/red
SDoes the oil level relay have continuity be-
tween red/blue and black?
Tester positive probe ! red/blue
Tester negative probe ! black
1
2
3
4
B/R