Inspection Procedure 2
INSPECTION PROCEDURE 2: The error code "SAT E" is displayed on the multi-center display.
CIRCUIT OPERATION
Power is supplied from the battery to the satellite radio tuner. The satellite radio tuner sends and receives the ACC signal and other signals via the radio and CD player with CD changer and the DIN cable (antenna feeder cable).
TECHNICAL DESCRIPTION (COMMENT)
When there is a failure in the satellite radio tuner, or the communication with the radio and CD player with CD changer is not normal, the error code "SAT E" is displayed on the multi-center display.
TROUBLESHOOTING HINTS
- Malfunction of the satellite radio tuner.
- Malfunction of the DIN cable (antenna feeder cable).
- Malfunction of the radio and CD player with CD changer.
- Malfunction of the AUX BOX.
- Damaged wiring harness and connectors
DIAGNOSIS
Required Special Tools:
- MB991223: Harness set
- MB992006: Extra Fine Probe
STEP 1. Check if the input of AUX adapter is sent correctly on the "AUX MODE".
Q. Is the input of AUX adapter is sent correctly?
YES Go to Step 2.
NO Carry out the troubleshooting for AUX adapter.(Refer to Inspection Procedure 9.)
STEP 2. Check that the AUX BOX and the radio and CD player with CD changer are connected to the DIN cable normally.
Q. Are they connected to the DIN cable normally?
YES Go to Step 3.
NO Repair the connection.
STEP 3. Check that the satellite radio tuner and the AUX BOX are connected to the DIN cable normally.
Q. Are they connected to the DIN cable normally?
YES Go to Step 4.
NO Repair the connection.
STEP 4. Check if the DIN cable (antenna feeder cable) is damaged.
Q. Is the DIN cable (antenna feeder cable) damaged or bent?
YES Repair or replace the DIN cable (antenna feeder cable).
NO Go to Step 5.
STEP 5. Check satellite radio tuner connector D-48 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q. Is satellite radio tuner connector D-48 in good condition?
YES Go to Step 6.
NO Repair or replace the component(s). Harness Connector Inspection.
STEP 6. Measure the voltage at satellite radio tuner connector D-48 in order to power supply circuit to satellite radio tuner (battery).
(1)Disconnect satellite radio tuner connector D-48, and measure at the wiring harness side.
(2)Measure the voltage between terminal 1 and ground.
- The voltage should measure approximately 12 volts (battery positive voltage).
Q. Is the measured voltage approximately 12 volts (battery positive voltage)?
YES Go to Step 8.
NO Go to Step 7.
STEP 7. Check the wiring harness between satellite radio tuner connector D-48 (terminal 1) and the battery.
NOTE:
Also check intermediate connector C-24, C-11 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-24, C-11 is damaged, repair or replace. Harness Connector Inspection.
Q. Is the wiring harness between satellite radio tuner connector D-48 (terminal 1) and the battery in good condition?
YES Retest the system.
NO Repair the wiring harness.
STEP 8. Measure the resistance at satellite radio tuner connector D-48 in order to the ground circuit to the satellite radio tuner.
(1)Disconnect satellite radio tuner connector D-48, and measure at the wiring harness side.
(2)Measure the resistance value between terminal 2 and ground.
- The resistance should be 2 ohms or less.
Q. Is the measured resistance 2 ohms or less?
YES Go to Step 10.
NO Go to Step 9.
STEP 9. Check the wiring harness between satellite radio tuner connector D-48 (terminal 2) and ground.
Q. Is the wiring harness between satellite radio tuner connector D-48 (terminal 2) and ground in good condition?
YES Retest the system.
NO Repair the wiring harness.
STEP 10. Temporarily replace the satellite radio tuner, and check if "SAT E" is displayed on the multi-center display.
Q. Is "SAT E" displayed on the multi-center display?
YES Replace the radio and CD player with CD changer.
NO Replace the satellite radio tuner.