DTC B1571
Precautions: Precautions for Diagnosing Trouble · General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
B1571: Combination Meter Spec Signal Failure HVAC control module receives invalid data of combination meter spec signal from combination meter. |
•Combination meter
•HVAC control module |
DTC Confirmation Procedure
1)Start engine and operate A/C system.
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
DTC check
1)Set ignition “ON”.
2)Set ignition “OFF”.
3)Set ignition “ON” and check for DTC.
Is DTC B1571 still detected?
|
Replace combination meter and/or HVAC control module and recheck DTC.
•Combination meter:
 •HVAC control module: |
Intermittent trouble.
|