LAN(diag)-69
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
T: DTC B0311 CAN-LS METER UNIT DATA ABNORMAL
DTC DETECTING CONDITION:
Combination meter has error, the harness between main harness splice and combination meter is open or
shorted, the connector is not connected properly, or the terminal has poor caulking.
TROUBLE SYMPTOM:
“Er Lc” is displayed in odo/trip meter.
WIRING DIAGRAM:
i128
1*
2*1*
2*
CAN JOINTCONNECTOR
i10
B283
A29A30
A27
A26
B26
B25
A: i84
B: B280B1
B14
TWISTED PAIR LINE
5467821931022 231112131415242526 2716171828 29192021 30
B280
i84
1234567891011121314151617181920212223242526272829303132333435
2345 678912 13 14 15 16 17 18 19 20 21 2210111
B283
i10
COMBINATIONMETER
BODYINTEGRATEDUNIT
AUTO A/CCONTROLMODULE
123456789101112
LAN00193
A:
B:
2*
1*
A6
A14
FRONTMONITOR
21
22MFD
2* :TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 7, 8, 9, 10, 11 AND 12
1* :TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 1, 2, 3, 4, 5 AND 6
i119
i122
A:
A:
A:
i119A:
i122
i128B:
MFDNAVI
MFD
NAVI
9
19 20
105672143131211
14 15 16 17
8
18222125262423
12345678910 11 12 13 14 15 16
345 678919 20 2114 15 16 17 1812101211 13 22
Step Check Yes No
1CHECK COMBINATION METER.
Perfor m the self-diagnosis of combination
meter.
INSPECTION, Combination Meter System.>
Is the self-diagnosis OK? Read the DTC
again, and then
perform the diag-
nosis according to
DTC displayed on
the top.
Replace the com-
bination meter.
REMOVAL, Com-
bination Meter.>
LAN(diag)-73
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
2CHECK HARNESS.
1) Disconnect the body integrated unit and
combination meter connector.
2) Measure the resistance between harness
connectors.
Connector & terminal
(i10) No. 29 — (i84) No. 27:
(i10) No. 30 — (i84) No. 26:
Is the resistance less than 10
Ω?
Go to step 4.Go to step 3.
3CHECK HARNESS.
1) Disconnect the CAN joint connector (i128)
with connector of unit disconnected.
2) Measure the resistance between harness
connectors.
Connector & terminal
(i10) No. 29 — (i128) No. 1 to 6:
(i10) No. 30 — (i128) No. 7 to 12:
(i84) No. 27 — (i128) No. 1 to 6:
(i84) No. 26 — (i128) No. 7 to 12:
Is the resistance less than 10
Ω?
Go to step 4.Repair or replace
the open circuit of
harness.
4CHECK HARNESS.
Measure the resistance between harness con-
nector (i128) and chassis ground.
Connector & terminal
(i128) No. 1 to 6 — Chassis ground:
(i128) No. 7 to 12 — Chassis ground:
Is the resistance less than 10
Ω?
Repair the short
circuit of harness
or replace har-
ness.
Go to step 5.
5CHECK HARNESS.
1) Turn the ignition switch to ON.
2) Measure the voltage between harness con-
nector (i77) and chassis ground.
Connector & terminal
(i128) No. 1 to 6 (+) — Chassis ground (–):
(i128) No. 7 to 12 (+) — Chassis ground
(–):
Is the voltage more than 6 V? Repair the short
circuit of harness
or replace har-
ness.
Go to step 6.
6CHECK COMBINATION METER.
Perfor m the self-diagnosis of combination
meter.
INSPECTION, Combination Meter System.>
Is the self-diagnosis OK? Temporary poor
contact occurs.
Check the connec-
tion of connector.
Replace the com-
bination meter.
REMOVAL, Com-
bination Meter.>
Step Check Yes No
