4.
Verify that the mode actuator operates to the def mode when connecting in the reverse.
Ignition "OFF"
Disconnect DR Direction Potentiometor.
Verify that the mode actuator operates to the vent mode when connecting 12V to the terminal 1 and grounding terminal 2.
Verify that the mode actuator operates to the def mode when connecting in the reverse.
Dose the actuator work properly?
YES
Go to "Check potentiometer" procedure.
NO
Substitute with a known-good actuator and check for proper operation. If the problem is corrected, replace actuator and then go to "Verification of Vehicle Repair" procedure.
Ignition "ON"
Connect DR Direction Potentiometor.
Measure voltage between terminal "4" and "5" of DR Direction Potentiometor as the mode switch is operated
Specification : Refer the specifications in fig3)
Door position | Voltasge (4-5) | Error detecting |
VENT | 0.3±0.15V | Undervoltage : 0.08V or less Overvoltage : 4.92V or more |
BI-LEVEL(1) | 1.35±0.4V | |
BI-LEVEL(2) | 2.25±0.4V | |
FLOOR | 3.0±0.4V | |
MIX | 3.6±0.4V | |
DEF | 4.7±0.15V |
Is the measured voltage within specifications in fig3)?
YES
Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
NO
Substitute with a known-good actuator and check for proper operation. If the problem is corrected, replace actuator and then go to "Verification of Vehicle Repair" procedure.
