1. When Power Switch Is Turned "ON," No Power Is Available

Radio, Tape Player, CD Player And CD Auto Changer Power Supply Circuit:

Connectors:

CIRCUIT OPERATION
Power is supplied to the radio, tape player, CD player and CD auto changer when the ignition switch is at the "ACC" or "ON" position.

TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a faulty radio, tape player, CD player and CD auto changer power supply circuit system.

TROUBLESHOOTING HINTS
- Damaged harness wire or connector.
- Malfunction of the radio, tape player, CD player and CD auto changer.

DIAGNOSIS
Required Special Tool:
MB991223: Harness set




STEP 1. Check the radio, tape player, CD player and CD auto changer power supply circuit.
1. Disconnect radio, tape player, CD player and CD auto changer connector C-22 and measure at the harness side.
2. Turn the ignition switch to "ACC" position.
3. Measure voltage between terminal 10 and ground.
- voltage should be approximately 12 volts (battery positive voltage)
If not approximately 12 volts, go to Step 2.
If approximately 12 volts, go to Step 4.




STEP 2. Check radio, tape player, CD player and CD auto changer connector C-22 for damage.
If radio, tape player, CD player and CD auto changer connector C-22 is damaged, repair or replace it. Refer to Harness Connector Inspection.
If the power switch is turned on, the radio, tape player, CD player and CD auto changer should operate normally.
If the connector is in good condition, go to Step 3.










STEP 3. Check the harness wires between radio, tape player, CD player and CD auto changer connector C-22 and ignition switch (ACC).

NOTE: After inspecting intermediate connector C-89 and junction block connectors C-101 and C-109, inspect The wire. If intermediate connector C-89 and junction block connectors C-101 and C-109 are damaged, repair or replace them. Refer to Harness Connector Inspection.

If the harness wires between radio, tape player, CD player and CD auto changer connector C-22 and ignition switch (ACC) are damaged, repair them.
If the power switch is turned on, the radio, tape player, CD player and CD auto changer should operate normally.

STEP 4. Are the radio, tape player, CD player and CD auto changer installed correctly?

NOTE: The radio, tape player, CD player and CD auto changer are grounded to the instrument panel center reinforcement directly.

If no, install properly.
If the power switch is turned on, the radio, tape player, CD player and CD auto changer should operate normally.

If yes, repair or replace the radio, tape player, CD player and CD auto changer.
If the power switch is turned on, the radio, tape player, CD player and CD auto changer should operate normally.