DTC Description

If APT CAN signal error is received or CAN signal is not received, A/C control module sets DTC B1627.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

CAN Signal Monitoring

1.

Poor Connector Connection

2.

Defected CAN Communication Circuit

3.

Defected PCM

4.

Defected A/C Control Module

Enable Conditions

Ignition Switch "ON"

Threshold value

CAN signal is not received for 1.5 sec or Error signal is received

Fail Safe

APT value replaced by "0"

Clear Condition

Ignition Switch "OFF" or Voltage Returns to Normal State

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