Hyundai R 160 LC-3, Service Manual

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2. COMMUNICATION ERROR "Co : Err" FLASHES ON THE CLUSTER
ş Before disconnecting the connector, always turn the starting switch OFF.
ş
Before carrying out below procedure, check all the related connectors are properly inserted.
ş After checking, insert the disconnected connectors again immediately unless otherwise specified.
Cause Remedy
Defective controller
Disconnection in
wiring harness or
poor contact
between CN-56
(3,4)-CN9(3,4)
Disconnection in
wiring harness or
poor contact
between CN-9
(3,4)-CN2(C,D)
Disconnection in
wiring harness or
poor contact
between CN-2
(C,D)-CN51(2.13)
Replace
Repair or replace
(After clean)
Repair or replace
(After clean)
Repair or replace
(After clean)
13
CLUSTER
POWER IG(24V)
GND
RX
TX
2
3
4
CN-56
2
3
4
CN-9
B
C
D
CN-2
CN-51
*4V
*12V
CONTROLLER
2
KEY ON
NO
NO
Check voltage
between CN-2
(C,D) and chassis
YES
YES
Check voltage
between CN-9
(3,4) and chassis
Check voltage
between CN-56
(3,4) and chassis
NO
YES
YES
NO
*4V
0V
*12V
0V
Check voltage