Radio

Radio Service Modes

The service mode or self test of the radio enables a Technician to retrieve important information and make various adjustments quickly and easily without removing the radio or using diagnostic equipment.

The information displayed during the Service Mode will vary based on the radio type.

Example C43/C53 radio with MID.




To enter the service mode :
- Turn ignition to KLR.
- Turn radio on by pushing volume knob (1).
- Within 8 seconds press and hold the "m" button (2).
- The First display will be the radio serial number indicating that the radio is in the service mode.

E38 with MID, press and hold the"WB" (Weather Band) button instead of the "m" button.

Please refer to SIB: 65 75 00 for additional instructions on radio service modes.

Entering the service mode varies by the device used to control the radio.

To enter the service mode:

C43/CD43/C53/CD53 with and without MID:
- Turn on the radio.
- Within 8 seconds, press and hold the "m" button for 8 seconds.
- Scroll through functions using the "+" and "-" keys or the station < > search buttons.
- Turn off the radio to end the service mode.

C53 MIR:
- Turn on the radio.
- Within 8 seconds, press and hold the "SEL" button for at least 8 seconds.
- Scroll through functions using the station < > search buttons.
- Turn off the radio to end the service mode.

BM43/BM53 with board monitor:
- Turn on the radio.
- Press and hold the "RDS" button for at least 8 seconds.
- Scroll through the functions using the station < > search buttons.
- Turn off the radio to end the service mode.

BM43/BM53 with Widescreen board monitor:
- Turn on the radio.
- Within 8 seconds, press the "INFO" button.
- From the info screen select RDS
- Press and hold the BM control knob for at least 8 seconds.
- Scroll through functions using the station < > search buttons.
- Turn off the radio to end the service mode

Service Mode Functions

1. Serial Number: Display of the radio serial number.
2. Software version: Display of the radio software version. Displayed as (calender week, year, version)
3. GAL: Speed-sensitive volume control. Can be adjusted from level 1-6 using the 6 preset audio buttons. Vehicles equipped with DSP do not use this feature.
4. Field strength and Quality (F/Q): The station currently displayed can be assessed for field strength and quality. An "F" (i.e. F15) number is used to indicate the strength of the signal being received by the radio. This is a good test of the antenna system, station signal, and the radio itself. A "Q" (i.e. Q.00) number is used to determine the quality of the radio station including both the audio and RDS signal if applicable.
5. DSP: This function provides information about whether the vehicle is fitted with DSP. The value is displayed as a one (fitted) or zero (not fitted) and is communicated by the DSP amplifier via the I/K bus.
6. TP Volume: Provides adjustment for traffic report minimum volume. Not used in the US.
7. AF: Alternative Frequency tracking setting. Not used in the US.
8. Area: Used to select the appropriate market setting (USA, Canada, Europe, Japan and Oceania). Adjust using the pre-set buttons.
9. Index: Display of the revision index.