- Ignition switch ON
- Blower switch: LO
- A/C switch: On
| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM10000000136FL |
| Model Year Start: 2018 | Model: Camry | Prod Date Range: [03/2017 - 06/2017] |
| Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System): B1451; Compressor Solenoid Circuit; 2018 MY Camry [03/2017 - 06/2017] | ||
|
DTC |
B1451 |
Compressor Solenoid Circuit |
DESCRIPTION
In this circuit, the compressor assembly with pulley (compressor solenoid) receives refrigerant compression demand signals from the air conditioning amplifier assembly.
Based on this signal, the compressor assembly with pulley (compressor solenoid) changes the amount of compressor output.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Memory |
|---|---|---|---|---|
|
B1451 |
Compressor Solenoid Circuit |
Open or short in compressor solenoid circuit |
|
- |
WIRING DIAGRAM
PROCEDURE
|
1. |
INSPECT AIR CONDITIONING AMPLIFIER ASSEMBLY |
|
*a |
Front view of wire harness connector (to Compressor Assembly with Pulley (Compressor Solenoid)) |
(a) Disconnect the C98 compressor assembly with pulley (compressor solenoid) connector.
(b) Connect an oscilloscope to terminal C98-2 (SOL+) and body ground and check the waveform.
OK:
Waveform is similar to that shown in the illustration.
|
Item |
Content |
|---|---|
|
Tool Setting |
5 V/DIV., 500 μs./DIV. |
|
Condition |
|
| OK |
|
REPLACE COMPRESSOR ASSEMBLY WITH PULLEY (COMPRESSOR SOLENOID) |
|
|
2. |
CHECK HARNESS AND CONNECTOR (COMPRESSOR ASSEMBLY WITH PULLEY (COMPRESSOR SOLENOID) - AIR CONDITIONING AMPLIFIER ASSEMBLY) |
(a) Disconnect the K54 air conditioning amplifier assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C98-2 (SOL+) - K54-3 (SOL+) |
Always |
Below 1 Ω |
|
C98-2 (SOL+) or K54-3 (SOL+) - Other terminals and body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|