INSPECTION PROCEDURE I-5: Ignition-linked fold/unfold function does not work normally.

CAUTION

Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

The ETACS-ECU operates this function in accordance with the input signals below.

Ignition switch (IG1)

Driver's door switch

If this function does not work normally, these input signal circuit(s) or the ETACS-ECU may be defective. In addition, it is possible that the function except the ignition-linked fold/unfold function has been set by using the adjustment function.

POSSIBLE CAUSES

Malfunction of the driver's door switch

Malfunction of ETACS-ECU

Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the adjustment function.

Check that "WING MIRROR" is set to "IG-LINKED FUN" by using the adjustment function.

Q: Is the check result normal?

YES: Go to Step 2

.
NO: Set "WING MIRROR" to "IG-LINKED FUN" by using the adjustment function.(Refer to

Step 2. Function diagnosis by using the SWS monitor

Check the SWS communication signal, which are related to the electric retractable remote controlled door mirror ignition-linked fold/unfold function.

<Selected item> ETACS ECU

Ignition switch: ON

Driver's door: open

Item No.	Item name	Normal conditions
Item 30	IG SW (IG1)	ON
Item 32	DR DOOR SW	ON

OK: Normal conditions displayed for all the items

Q: Are the check result normal?

Normal conditions are displayed for all the items.: Go to Step 3

.
Normal condition is not displayed for item No. 30: Refer to inspection procedure P-2 "The ignition switch (IG1) signal is not received

."
Normal condition is not displayed for item No. 32: Refer to inspection procedure P-4 "The driver’s door switch signal is not received

Step 3. Retest the system.

Check that the electric retractable remote controlled door mirror ignition-linked fold/unfold function works normally.

Q: Is the check result normal?

YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction

).
NO: Replace the ETACS-ECU.