DTC B2983 (57): A Problem in the Recirculation Control Motor Circuit, Linkage, Door, or Motor
| DTC Description | DTC |
|---|---|
| B2983 A problem in the recirculation control motor circuit, linkage, door, or motor |
- 1. Problem verification:
1. Clear the DTCs with the HDS.
2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.
3. Do the Self-Diagnostic Function with the HDS or the climate control unit - Refer to: How to Troubleshoot the Body ElectricalHow to Troubleshoot the Climate Control System .
4. Check for DTCs.
DTC Description DTC B2983 A problem in the recirculation control motor circuit, linkage, door, or motor Is DTC B2983 or 57 indicated?
YES
Go to step 2.
NO
Intermittent failure. Check for loose wires or poor connections on the recirculation control motor circuit.
- 2. Open wire check (F/R MTR(REC)/REC line):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connectors.
Climate control unit 32P connector Recirculation control motor 7P connector 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Climate control unit 32P connector: disconnected Recirculation control motor 7P connector: disconnected Test point 1 Climate control unit 32P connector No. 28 Test point 2 Recirculation control motor 7P connector No. 7 Is there continuity?
YES
The F/R MTR(REC)/REC wire is not open. Go to step 3.
NO
Repair an open in the wire between the climate control unit and the recirculation control motor.
- 3. Open wire check (F/R MTR(FRESH)/FRS line):
1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Climate control unit 32P connector: disconnected Recirculation control motor 7P connector: disconnected Test point 1 Climate control unit 32P connector No. 27 Test point 2 Recirculation control motor 7P connector No. 6 Is there continuity?
YES
The F/R MTR(FRESH)/FRS wire is not open. Go to step 4.
NO
Repair an open in the wire between the climate control unit and the recirculation control motor.
- 4. Shorted wire check (F/R MTR(REC)/REC line):
1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Climate control unit 32P connector: disconnected Recirculation control motor 7P connector: disconnected Test point 1 Climate control unit 32P connector No. 28 Test point 2 Body ground Is there continuity?
YES
Repair a short to ground in the wire between the climate control unit and the recirculation control motor.
NO
The F/R MTR(REC)/REC wire is OK. Go to step 5.
- 5. Shorted wire check (F/R MTR(FRESH)/FRS line):
1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Climate control unit 32P connector: disconnected Recirculation control motor 7P connector: disconnected Test point 1 Climate control unit 32P connector No. 27 Test point 2 Body ground Is there continuity?
YES
Repair a short to ground in the wire between the climate control unit and the recirculation control motor.
NO
The F/R MTR(FRESH)/FRS wire is OK. Go to step 6.
- 6. Recirculation control motor check:
1. Test the recirculation control motor .
Is the recirculation control motor OK?
YES
Replace the climate control unit .
NO
Replace the recirculation control motor , or repair the recirculation control linkage or door.
