DESCRIPTION
This sensor detects the position of the air mix damper (for front passenger side) and sends the appropriate signals to the air conditioning amplifier assembly. The position sensor is built into the No. 2 air conditioning radiator damper servo sub-assembly (for front passenger side air mix).
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1431/31 |
Short to ground or power source circuit air mix damper position sensor (for front passenger side) circuit. |
|
WIRING DIAGRAM
PROCEDURE
1. |
READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Operate the front passenger side temperature switch.
(e) Enter the following menus: Body Electrical / Air Conditioner / Data List.
(f) Check the value(s) by referring to the table below.
Air Conditioner
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Air Mix Damper Position (Passenger Side) |
Air mix damper servo motor (for front passenger side) actual position / Min.: -14.0% Max.: 113.5% |
MAX COOL: 0.0% MAX HOT: 100.0% |
- |
Air Mix Damper Target (Passenger Side) |
Air mix damper servo motor (for front passenger side) target position / Min.: -14.0% Max.: 113.5% |
MAX COOL: 0.0% MAX HOT: 100.0% |
- |
OK:
The display is as specified in the Normal Condition column.
Result |
Proceed to |
---|---|
NG |
A |
OK (When troubleshooting according to Problem Symptoms Table) |
B |
OK (When troubleshooting according to the DTC) |
C |
B | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
C | ![]() |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
|
2. |
INSPECT NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FOR FRONT PASSENGER SIDE AIR MIX) |
(a) Remove the No. 2 air conditioning radiator damper servo sub-assembly (for
front passenger side air mix) (See page ).
(b) Inspect the No. 2 air conditioning radiator damper servo sub-assembly (for
front passenger side air mix) (See page ).
NG | ![]() |
REPLACE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FOR FRONT PASSENGER SIDE AIR MIX) |
|
3. |
CHECK HARNESS AND CONNECTOR (NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY) |
(a) Disconnect the D31 No. 2 air conditioning radiator damper servo sub-assembly (for front passenger side air mix) connector.
(b) Disconnect the A35 and A36 air conditioning amplifier assembly connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D31-1 (SG) - A36-29 (S5-4) |
Always |
Below 1 Ω |
D31-2 (TPP) - A35-4 (TPR) |
Always |
Below 1 Ω |
D31-3 (S5) - A35-18 (SG-5) |
Always |
Below 1 Ω |
D31-1 (SG) or A36-29 (S5-4) - Body ground |
Always |
10 kΩ or higher |
D31-2 (TPP) or A35-4 (TPR) - Body ground |
Always |
10 kΩ or higher |
D31-3 (S5) or A35-18 (SG-5) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Disassembly
DISASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for both the LH and RH sides.
The procedure described below is for the LH side.
PROCEDURE
1. REMOVE FOG LIGHT BULB
(a) Turn the fog light bulb in the direction indicated by the arrow in
the illust ...
Central Gateway ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Central Gateway ECU Communication Stop Mode
Communication system DTCs (DTCs that start with U) that correspond to
"Central Gateway ECU Communication Stop Mode" in "DTC Com ...
GPS Mark is not Displayed
PROCEDURE
1.
CHECK CABIN
(a) Check the cabin for any object that might interrupt radio reception or additional
devices which use radio waves on the instrument panel. If such an object exists,
remove it and check if the GPS mark reappears.
HINT:
The GPS uses ex ...