DTC 06, 10, 12, 18, 21 (MULTIPLE DTCS INDICATED)


BHE070201038W09

DTC 06, 10, 12, 18, 21

A/C amplifier (+5 V power supply or sensor ground) system inspection

POSSIBLE CAUSE

• Open circuit in wiring harnesses between A/C amplifier and each temperature sensor, air mix actuator, or airflow mode actuator

Diagnostic Procedure

STEP

INSPECTION

ACTION

1
• Disconnect the A/C amplifier connector (16-pin) and the evaporator temperature sensor connector.
• Is there continuity between A/C amplifier connector (16-pin) terminal 2P and evaporator temperature sensor connector terminal A?
Yes
Inspect the connection at the A/C amplifier connector (16-pin). (See A/C AMPLIFIER INSPECTION [FULL-AUTO AIR CONDITIONER].)
No
Repair the wiring harness.