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TROUBLESHOOTING
- 2 BOARD
2) When the EXT Sensor is defective
ERROR CODE
DATA1. Temp Table
** Sensor Resistance Reading
Location **
Ambient : Between CN31 #3 and #4.
** Located in the PCB Box
** 0Ω : Short / ∞Ω : Open
Refer to Circuit Diagram
Sensor MICOM/Connector #
Between Connector
Ambient
CN31-"3"(ORG) and
CN31-"4"(WHT)
Voltage : Between 4.6V ~ 0.6V
Voltage at IC10 MICOM #50 is the
same as the value between CN31-
"3"(ORG) and CN31-"4"(WHT) of the
CN31 on MAIN PBA.
Start
MAIN PCB SENSOR
(CN31) is inserted properly?
Yes
EXT Sensor is
normal?
Yes
Voltage between
MAIN PCB Connector CN31-"3"(ORG)
and CN31-"4"(WHT)?
Yes
Input Voltage at IC01
MICOM Pin #50 is normal?
Yes
PCB and Temp Sensor are normal.
Check the connector contact.
73
No
Connector contact defect /
Reconnect
No
Replace Temp Sensor
NO (0.6V > Value or Value > 4.6V)
No
Check the assembled status of the
Sensor.
No
Check Soldering Defect & Short
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