Inspection Procedure 1

When power switch is turned "ON," no power is available.

Radio, Tape Player, CD Player And CD Audio 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 by backprobing.
1. Do not disconnect radio, tape player, CD player and CD auto changer connector C-11.
2. Turn the ignition switch to "ACC" position.




3. Measure the voltage between terminal 6 and ground by backprobing.

Q: Is the voltage approximately 12 volts (battery positive voltage)?

YES: Go to Step 4.
NO: Go to Step 2.




STEP 2. Check radio, tape player, CD player and CD auto changer connector C-11 for damage.

Q: Are radio and CD player and CD auto changer connector C-11 in good condition?

YES: Go to Step 3.
NO: Repair or replace it. Refer to Harness Connector Inspection. If the power switch is turned on, the radio and CD player and CD auto changer should operate normally.










STEP 3. Check the harness wires between radio, tape player, CD player and CD auto changer connector C-11 and ignition switch (ACC).

NOTE: After inspecting intermediate connector C-209 and junction block connectors C-301 and C-310, inspect the wire. If intermediate connector C-209 and junction block connectors C-301 and C-310 are damaged, repair or replace them. Refer to Harness Connector Inspection.




Q: Are the harness wires between radio, tape player, CD player and CD auto changer connector C-11 and ignition switch (ACC) in good condition?

YES: There is no action to be taken.
NO: 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.

Q: Are the radio, tape player, CD player and CD auto changer Installed correctly?

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