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 |
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE NO. 2 ANTENNA CORD SUB-ASSEMBLY (w/o Sliding Roof)
2. REMOVE NO. 2 ANTENNA CORD SUB-ASSEMBLY (w/ Sliding Roof)
3. REMOVE VANITY LIGHT ASSEMBLY
(a) Remove the vanity light assembly (See page
).
HINT:
Use the same p ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column ...
Back Door Closer does not Operate
DESCRIPTION
When the back door closer does not operate, one of the following may be the cause:
1) improper fit of the back door, or a foreign object is stuck in the back door
or 2) initialization of the power back door ECU (power back door motor unit)*1, ...