DESCRIPTION
When the A/C amplifier is turned on, a magnetic clutch ON signal is sent from the MGC terminal of the A/C amplifier. Then, the MGC relay turns on to operate the magnetic clutch.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
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 RELAY (MGC) |
(a) Remove the MGC relay from the engine room relay block and junction block. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Specified Condition |
---|---|
3 - 5 |
10 kΩ or higher |
3 - 5 |
Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
NG |
REPLACE RELAY (MGC) |
|
3. |
CHECK HARNESS AND CONNECTOR (ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK - BATTERY) |
(a) Remove the MGC relay from the engine room relay block and junction block. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
Relay block MGC relay terminal 1 - Body ground |
Ignition switch ON |
11 to 14 V |
*1 |
Component without relay installed (Engine Room Relay Block and Junction Block) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BATTERY) |
(a) Disconnect the A/C amplifier connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D47-20 (MGC) - Body ground |
Ignition switch off |
Below 1 V |
D47-20 (MGC) - Body ground |
Ignition switch ON |
11 to 14 V |
*1 |
Front view of wire harness connector (to A/C Amplifier) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
INSPECT A/C AMPLIFIER |
(a) Reconnect the A/C amplifier connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D47-20 (MGC) - Body ground |
Ignition switch ON A/C switch: off |
11 to 14 V |
D47-20 (MGC) - Body ground |
Ignition switch ON A/C switch: on |
Below 1 V |
*1 |
Component with harness connected (A/C Amplifier) |
NG |
REPLACE A/C AMPLIFIER |
|
6. |
INSPECT A/C COMPRESSOR |
(a) Disconnect the A/C compressor connector. |
|
(b) Disconnect the magnetic clutch connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B9-3 (MG+) - d3-1 |
Always |
Below 1 Ω |
B9-3 (MG+) - Body ground |
Always |
10 kΩ or higher |
*1 |
Component without harness connected (A/C Compressor) |
*2 |
Component without harness connected (Magnetic Clutch) |
NG |
REPLACE A/C COMPRESSOR |
|
7. |
INSPECT MAGNETIC CLUTCH |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(b) When connector terminal d3-1 is connected to a positive (+) battery terminal, check that the following occurs: 1) the magnetic clutch operating sound can be heard, and 2) the magnetic clutch hub and rotor lock.
Text in Illustration
*1 |
Component without harness connected (Magnetic Clutch) |
NG |
REPLACE MAGNETIC CLUTCH |
|
8. |
CHECK HARNESS AND CONNECTOR (ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK - BATTERY) |
(a) Remove the MGC relay from the engine room relay block and junction block. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
Relay block MGC relay terminal 5 - Body ground |
Ignition switch ON |
11 to 14 V |
*1 |
Component without relay installed (Engine Room Relay Block and Junction Block) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
9. |
CHECK HARNESS AND CONNECTOR (ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK - A/C COMPRESSOR) |
(a) 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 |
Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1) (P2237-P2239,P2252,P2253)
DESCRIPTION
Refer to DTC P2195 (See page ).
HINT:
Although the DTC titles say oxygen sensor, these DTCs relate to the air fuel
ratio sensor.
DTC No.
DTC Detection Condition
Trouble Area
P2237
...
Installation
INSTALLATION
PROCEDURE
1. INSTALL FRONT POWER SEAT LUMBAR SWITCH
(a) Install the front power seat lumbar switch with the 2 screws.
2. INSTALL FRONT SEAT CUSHION SHIELD ASSEMBLY
3. INSTALL SLIDE ...
Readiness Monitor Drive Pattern
READINESS MONITOR DRIVE PATTERN
1. PURPOSE OF READINESS TESTS
The On-Board Diagnostic (OBD II) system is designed to monitor the performance
of emission related components, and indicate any detected abnormalities
using DTCs (Diagnostic Trouble ...