Inspection Procedure 1

The system does not accept remote controlled radio switches (RH and LH), but accepts radio and CD player switches.

Remote Controlled Radio Switch Circuit:

CIRCUIT OPERATION
- If the remote controlled radio switch is operated, the output voltage will change. The radio and CD player operates according to the change on the voltage.

TECHNICAL DESCRIPTION (COMMENT)
If the system does not accept the remote controlled radio switches, the remote controlled radio switch assembly, the clock spring or the radio and CD player may be defective.

TROUBLESHOOTING HINTS
- Malfunction of the remote controlled radio switch
- Malfunction of the radio and cd player
- Malfunction of the clock spring
- Damaged wiring harness or connectors

DIAGNOSIS

STEP 1. Check the remote controlled radio switch power supply circuit at the clock spring connector C-84.




1. Disconnect the clock spring connector C-84.
2. Turn the ignition switch to "ON" position.




3. Measure the voltage between terminal 2 and ground.
- The measured value should be approximately 5 volts (battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES: Go to Step 4.

NO: Go to Step 2.







STEP 2. Radio and CD player connector C-21 and clock spring connector C-84 for damage.

Q: Are radio and CD player connector C-21 and clock spring connector C-84 in good condition?

YES: Go to Step 3.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. The remote controlled radio switch should work normally.







STEP 3. Check the wiring harness between clock spring connector C-84 (terminal 2) and radio and CD player connector C-21 (terminal 28).

Q: Is the wiring harness between radio and CD player connector C-21 (terminal 28) and clock spring connector C-84 (terminal 2) in good condition?

YES: Go to Step 5.

NO: Repair the wiring harness. The remote controlled radio switch should work normally.

STEP 4. Check the remote controlled radio switch ground circuit at the clock spring connector C-84.




1. Disconnect the clock spring connector C-84.




2. Measure resistance between terminal 3 and ground.
- The measured value should be 2 ohm or less.

Q: Does the measured resistance value correspond with this range?

YES: Go to Step 7

NO: Go to Step 5.







STEP 5. Check the clock spring connector C-84 and radio and cd player connector C-21 for damage.

Q: Is clock spring connector C-84 and radio and cd player connector C-21 in good condition?

YES: Go to Step 6.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. The remote controlled radio switch should work normally.







STEP 6. Check the wiring harness between clock spring connector C-84 (terminal 3) and radio and CD player connector C-21 (terminal 24).

Q: Is the wiring harness between clock spring connector C-84 (terminal 2) and radio and cd player connector C-21 (terminal 24) in good condition?

YES: Go to Step 7.

NO: Repair the wiring harness. The remote controlled radio switch should work normally.

STEP 7. Check the clock spring continuity.

1. Remove the clock spring (Refer to Air Bag Module and Clock Spring).







2. Measure the resistance at clock spring connectors C-96 and C-84.

Q: Is the clock spring normal?

YES: Go to Step 8.

NO: Replace the clock spring.




STEP 8. Check the clock spring connector C-96 and switch (RH) connector C-97 for damage.

Q: Are clock spring connector C-96 and switch (RH) connector C-97 in good condition?

YES: Go to step 9.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. The remote controlled radio switch should work normally.




STEP 9. Check the wiring harness between clock spring connector C-96 (terminals 4 and 5) and switch (RH) connector C-97 (terminals 1 and 2).

Q: Is the wiring harness between clock spring connector C-96 (terminals 4 and 5) and switch (RH) connector C-97 (terminals 1 and 2) in good condition?

YES: Replace the audio system.

NO: Repair the wiring harness. The speedometer should work normally.