DESCRIPTION
In this circuit, the A/C compressor receives a refrigerant compression demand signal from the A/C amplifier.
Based on this signal, the A/C compressor changes the amount of compressor output.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1451/51 |
Open or short in A/C compressor solenoid circuit |
|
WIRING DIAGRAM
PROCEDURE
1. |
INSPECT A/C COMPRESSOR (SOLENOID VALVE) |
(a) Disconnect the A/C compressor (solenoid valve) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B29-2 (SOL+) - B29-1 (SOL-) |
20°C (68°F) |
10 to 11 Ω |
Result |
Proceed to |
---|---|
OK |
A |
NG (for 2GR-FE) |
B |
NG (for 1AR-FE) |
C |
*1 |
Component without harness connected (A/C Compressor (Solenoid Valve)) |
B | ![]() |
REPLACE A/C COMPRESSOR (SOLENOID VALVE) |
C | ![]() |
REPLACE A/C COMPRESSOR (SOLENOID VALVE) |
|
2. |
CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR (SOLENOID VALVE) - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR (SOLENOID VALVE) - A/C AMPLIFIER) |
(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 |
Lost Communication with Gateway Module (Power Management1) (U1002)
DESCRIPTION
The power management control ECU will store this DTC when no signals
can be received from the ECUs that have been memorized as those that are
connected to the CAN No. 2 bus.
When the power management control ECU receives a respo ...
Inside Vehicle
General Maintenance
GENERAL MAINTENANCE
CAUTION / NOTICE / HINT
These are maintenance and inspection items that are considered to be
the owner's responsibility.
The owner can do them or they can have them done at a service center.
The ...
Inner Rear View Mirror Power Source Circuit
DESCRIPTION
This circuit detects the state of the ignition switch, and sends it to the inner
rear view mirror assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the followin ...