DESCRIPTION
This sensor detects the position of the air inlet damper and sends the appropriate signals to the air conditioning amplifier assembly. The position sensor is built into the No. 1 air conditioning servo assembly (fresh/recirculation damper).
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1432/32 |
Short to ground or power source circuit air inlet damper position sensor 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 recirculation/fresh 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 Inlet Damper Position |
Air inlet damper servo motor actual position / Air inlet damper servo motor actual position / Min.: -14.0% Max.: 113.5% |
FRESH: 0.0% RECIRCULATION: 100.0% |
- |
Air Inlet Damper Target |
Air inlet damper servo motor target position / Min.: -14.0% Max.: 113.5% |
FRESH: 0.0% RECIRCULATION: 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. 1 AIR CONDITIONING SERVO ASSEMBLY (FRESH/RECIRCULATION DAMPER) |
(a) Remove the No. 1 air conditioning servo assembly (fresh/recirculation damper)
(See page ).
(b) Inspect the No. 1 air conditioning servo assembly (fresh/recirculation damper)
(See page ).
NG | ![]() |
REPLACE NO. 1 AIR CONDITIONING SERVO ASSEMBLY (FRESH/RECIRCULATION DAMPER) |
|
3. |
CHECK HARNESS AND CONNECTOR (NO. 1 AIR CONDITIONING SERVO ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY) |
(a) Disconnect the D29 No. 1 air conditioning servo assembly (fresh/recirculation damper) 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 |
---|---|---|
D29-1 (SG) - A36-13 (S5-2) |
Always |
Below 1 Ω |
D29-2 (TPI) - A35-6 (TPI) |
Always |
Below 1 Ω |
D29-3 (S5) - A35-16 (SG-3) |
Always |
Below 1 Ω |
D29-1 (SG) or A36-13 (S5-2) - Body ground |
Always |
10 kΩ or higher |
D29-2 (TPI) or A35-6 (TPI) - Body ground |
Always |
10 kΩ or higher |
D29-3 (S5) or A35-16 (SG-3) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
System Diagram
SYSTEM DIAGRAM
1. OVERALL CAN BUS DIAGRAM
(a) The CAN communication system is composed of 4 buses.
CAN Main Bus Line
Terminating Resistor
CAN Branch Line
*
Gateway Function Equipped ECU
...
Inspection
INSPECTION
PROCEDURE
1. INSPECT REAR AXLE SHAFT
(a) Using a dial indicator, measure the runout of the shaft and flange.
Maximum runout:
Shaft runout: 1.5 mm (0.0591 in.)
Flange runout: 0.05 mm (0.0020 in.)
If the rear axle shaft or flange is damaged or worn, or the runout is greater
than ...
Check Bus 5 Lines for Short Circuit
DESCRIPTION
There may be a short circuit between the CAN main bus lines and/or CAN branch
lines when the resistance between terminals 15 (CA5H) and 16 (CA5L) of the central
gateway ECU (network gateway ECU) is below 54 Ω.
Detection Item
Trouble Area
Resi ...