- Telephone ECU assembly
- Telephone antenna assembly (GPS antenna)
- Antenna cord sub-assembly
| Last Modified: 11-27-2007 | 1.6 C | |
| Service Category: Audio/Visual/Telematics | Section: Cellular Communication | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000001EFY00DX |
| Title: CELLULAR COMMUNICATION: LEXUS LINK SYSTEM: DESCRIPTION (2008 LX570) | ||
|
DTC |
3-1 |
GPS Antenna Error |
DESCRIPTION
This DTC is stored when one of the following occurs: 1) the telephone ECU assembly is malfunctioning; 2) the telephone antenna (GPS antenna) is malfunctioning; or 3) the antenna cord is malfunctioning.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
3-1 |
Communication or the communication line is abnormal between the telephone ECU assembly and telephone antenna (GPS antenna). |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT ANTENNA CORD SUB-ASSEMBLY |
|
(a) Disconnect the antenna cord connector from the ECU. |
(b) Disconnect the antenna cord connector from the telephone antenna.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A-1 (SIGNAL) - 1 |
Always |
Below 1 Ω |
|
A-1 (SIGNAL) - Body ground |
Always |
10 kΩ or higher |
|
|
2. |
CHECK TELEPHONE ECU ASSEMBLY (OPERATION) |
(a) Temporarily replace the telephone ECU assembly and mayday battery with a new one
.
(b) Check for the current DTC again
.
OK:
System operates normally (red LED off).
NG:
Current DTC 3-1 is output.
|
|
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