DESCRIPTION
The main power source is supplied to the A/C amplifier when the ignition switch is ON.
The power source is used for operating the A/C amplifier and servo motor, etc.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT:
Start the engine before inspection. Check the IG1 relay or battery if the engine does not start.
PROCEDURE
1. |
INSPECT A/C AMPLIFIER |
(a) Remove the A/C amplifier with its connectors still connected. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D47-1 (IG+) - D47-14 (GND) |
Ignition switch off |
Below 1 V |
D47-1 (IG+) - D47-14 (GND) |
Ignition switch ON |
11 to 14 V |
*1 |
Component with harness connected (A/C Amplifier) |
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
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 |
---|---|---|
D47-1 (IG+) - Body ground |
Ignition switch off |
Below 1 V |
D47-1 (IG+) - 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 |
|
3. |
CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
OK |
REPLACE A/C AMPLIFIER |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
After replacing the stereo component tuner assembly of vehicles subscribed to
pay-type satellite radio broadcasts, XM radio ID registration is necessary (w/ SDARS
System).
HINT:
Use the table below to help determi ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL UNLOCK WARNING SWITCH
(a) Engage the 2 claws and install the unlock warning switch to the steering
column upper bracket.
(b) Extract the key.
(c) Co ...
Front Occupant Classification Sensor RH Collision Detection (B1786)
DESCRIPTION
DTC B1786 is output when the occupant classification ECU receives a collision
detection signal sent by the front occupant classification sensor RH if an accident
occurs.
DTC B1786 is also output when the front seat assembly RH is subjected to ...