Inspection Procedure 1

INSPECTION PROCEDURE 1: All Heated Door Mirrors do not Operate

Heated Door Mirror Circuit (Part 1):

Heated Door Mirror Circuit (Part 2):

CIRCUIT OPERATION
If the heater function (heated door mirror) of the heater function does not operate normally it may be due to a malfunction in the defogger relay system.

TROUBLESHOOTING HINTS
- Malfunction of the defogger relay system.
- The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector.

DIAGNOSIS

Required Special Tools:
- MB991223: Test Harness Set

STEP 1. Check the defogger.

1. Ignition switch: ON
2. Defogger switch: ON

Q: Does the defogger work normally?

YES : Go to Step 2.

NO : Malfunction of the defogger. Carry out the troubleshooting (Refer to A/C).

STEP 2. Check the battery power supply circuit to the remote controlled mirror (RH). Test at remote controlled mirror (RH) connector E-15






1. Disconnect the remote mirror connector E-15 and measure the voltage available at the wiring harness side of the connector.






2. Measure the voltage between terminal 1 and ground.
- The voltage should equal approximately 12 volts (battery positive voltage).

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

YES : No action is necessary and testing is complete.

NO : Go to Step 3.

STEP 3. Check the remote controlled mirror (RH) connector E-15 and junction block connector C-205 for loose, corroded or damaged terminals, or terminals pushed back in the connector.









Q: Are the remote controlled mirror (RH) connector E-15 and junction block connector C-205 in good condition?

YES : Go to Step 4.

NO : Repair or replace the damaged component(s). Refer to General (Electrial), Harness Connector Inspection. Check if the door mirror heater function (heated door mirrors) works normally.

STEP 4. Check the wiring harness between the remote controlled mirror (RH) connector E-15 (terminal 1) and junction block connector C-205 (terminal 3).












NOTE: Also check intermediate connector C-15 for loose, corroded, or damaged terminals, or terminals pushed back in the connector If intermediate connector C-15 is damaged, repair or replace the damaged component(s) as described in General (Electrial), Harness Connector Inspection.

Q: Are the wiring harness between the remote controlled mirror (RH) connector E-15 (terminal 1) and the junction block connector C-205 (terminal 3) in good condition?

YES : No action is necessary and testing is complete.

NO : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Check if the door mirrors heater function (heated door mirror) work normally.