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 |
Fuel Sender Open Detected (B1500)
DESCRIPTION
This DTC is output when the combination meter assembly detects a fuel sender
gauge malfunction via the direct line.
DTC No.
DTC Detection Condition
Trouble Area
B1500
When either of t ...
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 ...
Engine Oil Cooler
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE EXHAUST MANIFOLD ASSEMBLY
HINT:
See page
2. DRAIN ENGINE OIL
3. DRAIN ENGINE COOLANT
4. REMOVE OIL COOLER ASSEMBLY
(a) Remove the nut, union bolt, seal ...