siai47 wrote:...wonder what all the other pins are for.
HOW TO START SPEAKER CONNECTION CHECK MODE
Enter the speaker connection check mode according to the following steps:
1.Turn the electric motor switch to the "ACC" or "ON" position and switch off the radio and CD player.
2.Press the following buttons in that order within sixty seconds from step (1).
(1) CD/TRACK DOWN button
(2) SEEK DOWN button
(3) SEEK UP button
(4) CD/TRACK UP button
. . .
SPEAKER CONNECTION CHECK MODE
With the speaker connection check mode, the connection status of each speaker can be checked based on the sound output from each speaker. The procedure is as follows.
1. At the same time with the start of speaker check mode, the sound for speaker connection check is output from the front door speaker (LH) and tweeter (LH).
2. Press the CD/TRACK UP button to switch the sound output for speaker connection check from the front door speaker (RH) to the tweeter (RH).AUDIO ERROR CODES
If the radio and CD player detects any malfunction in itself or the inserted CD, the error codes below will be shown on the display.E Power supply error / Communication error / Other error
This error code will be displayed if the internal error is detected in the radio and CD player. Replace the radio and CD player.E 01 Focus errorE 02 Abnormal disc
E 01 and E 02 error codes will be shown if there is any problem with the CD or there is excessive vibration on the vehicle. If the error codes are not displayed when the vehicle is stopped and another CD is inserted, there is a problem with the CD. Check if there is any of the following problems with the CD.
Contamination, scratch, or deformation
Formation of moisture or grease
If the error code does not disappear even when the normal CD is inserted, oil film or condensation may be generated inside the radio and CD player. Clean the inside of the radio and CD player, and check that no error codes are displayed.E 03 Mechanical error.
This error code will be shown if there is any internal mechanical or electrical problem in the radio and CD player. Replace the radio and CD player check that no error codes are shown.E HOT Protection against high temperature.
If the internal temperature is extremely high, this error code will be shown. Turn off the radio and CD player and wait until they cool down. Wait for a while, and then turn on the unit again. Check that the same error does not appear.