DTC DETECTION LOGIC

DTC | Items (CONSULT-III screen terms) | Diagnostic item is detected when... | Possible causes
B2634 | PASS AIR MIX ACTR SHORT | Air mix door PBR (passenger side) position 95% or less |

- Air mix door motor (passenger side) (PBR internal circuit is shorted)
- A/C auto amp.
- Harness and connector
  (LAN communication line is open or shorted)

B2635 | PASS AIR MIX ACTR OPEN | Air mix door PBR (passenger side) position 5% or more |

- Air mix door motor (passenger side) (PBR internal circuit is open)
- A/C auto amp.
- Harness and connector
  (LAN communication line is open or shorted)

DTC CONFIRMATION PROCEDURE
1.PERFORM SELF-DIAGNOSIS
With CONSULT-III

1. Perform the “SELF-DIAGNOSIS”.
2. Check if any DTC is detected in the self-diagnostic results.

NOTE：
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to DTC Logic or DTC Logic.
Is DTC “B2634” or “B2635” displayed?
YES>>Perform the diagnosis of air mix door motor system (passenger side). Refer to Diagnosis Procedure.
NO>>GO TO 2.
2.FUNCTION INSPECTION

1. Operate the temperature control dial (passenger side) and raise the set temperature to 32.0°C (90°F) after warming up the engine.
2. Check that warm air blows from passenger side outlets.
3. Operate the compressor.
4. Operate the temperature control dial (passenger side) and lower the set temperature to 18.0°C (60°F).
5. Check that the cool air blows from the passenger side outlets.

Does it operate normally?
YES>>INSPECTION END
NO>>Check the air mix door system (passenger side) installation condition. Repair or replace the malfunctioning parts.