SYSTEM DESCRIPTION
The ECM sends the engine speed signal to the A/C amplifier via CAN communication.
The A/C amplifier reads the difference between compressor speed and engine speed. When the difference becomes too large, the A/C amplifier determines that the compressor is locked, and turns the magnetic clutch off.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1422/22 |
Open or short in compressor lock sensor circuit |
|
WIRING DIAGRAM
PROCEDURE
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Result |
Proceed to |
---|---|
CAN DTC is not output |
A |
CAN DTC is output |
B |
B | ![]() |
GO TO CAN COMMUNICATION SYSTEM |
|
2. |
INSPECT A/C COMPRESSOR (A/C LOCK SENSOR) |
(a) Disconnect the A/C compressor connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B9-1 (SSR+) - B9-2 (SSR-) |
20°C (68°F) |
160 to 320 Ω |
*1 |
Component without harness connected (A/C Compressor) |
NG | ![]() |
REPLACE A/C COMPRESSOR (A/C LOCK SENSOR) |
|
3. |
CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - A/C LOCK SENSOR) |
(a) Disconnect the A/C amplifier connector. |
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
Result:
|
|
A | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
B | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
C | ![]() |
REPLACE A/C AMPLIFIER |
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repair" after replacing the camshaft, No. 2 camshaft,
camshaft timing gear assembly or camshaft timing exhaust gear assembly (See page
).
PROCEDURE
1. INSTALL NO. 2 CAMSHAF ...
System Description
SYSTEM DESCRIPTION
1. OUTLINE OF THEFT DETERRENT SYSTEM
The theft deterrent system can be set by locking the doors using the
transmitter or key, or by opening and closing the doors (for details, refer
to Active Arming Mode or Passive Arming Mo ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTCS
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Check for DTCs. Enter the following menus: Body Electrical / Smart Key /
Trouble ...