Diagnostic Trouble Code Chart
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.
Telephone ECU assembly (Map Light LED Blinking Pattern)
DIAGNOSTIC TROUBLE CODE CHART
| DTC Code | Detection Item | Trouble Area | Indicator (red LED) Illuminates when DTC is Stored |
|---|---|---|---|
| 1-1 | Services Disabled | No problem | No |
| 1-2 | Option Configuration Error | Telephone ECU assembly | Yes |
| 2-1 | EEPROM Communication Error | Telephone ECU assembly | Yes |
| 2-2 | EEPROM Checksum Error | Telephone ECU assembly | Yes |
| 2-3 | Digital Signal Processor Communication Error | Telephone ECU assembly | Yes |
| 2-4 | GPS Communication Error | Telephone ECU assembly | Yes |
| 2-6 | Network Access Device Communication Error | Telephone ECU assembly | Yes |
| 3-1 | GPS Antenna Error |
|
Yes |
| 3-2 | Cellular Phone Antenna Error |
|
Yes |
| 3-3 | GPS Signal not Received |
|
Yes |
| 4-1 | Red LED Error |
|
Not applicable |
| 4-2 | Green LED Error |
|
Yes |
| 4-3 | Overhead Module Microphone Error |
|
Yes |
| 4-4 | SERVICES, PHONE or PTT Button Stuck |
|
Yes |
| 4-5 | EMERGENCY, VOL+ or VOL- Button Stuck |
|
Yes |
| 4-6 | SERVICES, PHONE or PTT Button has Connection Error |
|
Yes |
| 4-7 | EMERGENCY, VOL+ or VOL- Button has Connection Error |
|
Yes |
| 5-1 | LEXUS Link Communication Error |
|
Yes |
| 5-2 | Airbag Signal Communication Error |
|
Yes |
| 6-1 | Backup Battery Depleted |
|
Yes |
| 6-2 | Low Vehicle Battery Voltage |
|
Yes |
| 6-3 | Backup Battery has been used | No problem | Not applicable |
| 6-4 | Backup Battery Connection Error |
|
Yes |
Bus Buffer ECU [Mayday Gateway] (Tester Display)
DTC CODE REFERENCE CHART
| DTC Code | Detection Item | Trouble Area |
|---|---|---|
| U0198 | Lost Communication with Telematic Control Module |
|