Navigation System Reverse Signal Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK COWL SIDE JUNCTION BLOCK ECU LH
CHECK WIRE HARNESS (MULTI-DISPLAY - COWL SIDE JUNCTION BLOCK ECU LH)
CHECK MULTI-DISPLAY
NAVIGATION SYSTEM - Reverse Signal Circuit |
DESCRIPTION
The multi-display receives the reverse signal from the cowl side junction block ECU LH and sends the signal to the navigation ECU. The multi-display receives information about the GPS's antenna, and then adjusts the vehicle position.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK COWL SIDE JUNCTION BLOCK ECU LH |
Measure the voltage of the junction block.
- Standard voltage:
Tester Connection
| Shift Lever Position
| Specified Condition
|
W2-2 (BACK) - Body ground
| R
| 10 to 14 V
|
W2-2 (BACK) - Body ground
| Not R
| Below 1 V
|
| | REPLACE COWL SIDE JUNCTION BLOCK ECU LH |
|
|
| 2.CHECK WIRE HARNESS (MULTI-DISPLAY - COWL SIDE JUNCTION BLOCK ECU LH) |
Disconnect the L46 multi-display connector.
Disconnect the W2 ECU connector.
Measure the resistance of the wire harness side connectors.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
L46-13 (REV) - W2-2 (BACK)
| Always
| Below 1 Ω
|
L46-13 (REV) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS AND CONNECTOR |
|
|
Measure the voltage of the connector.
- Standard voltage:
Tester Connection
| Shift Lever Position
| Specified Condition
|
h1-12 (REV) - Body ground
| R
| 10 to 14 V
|
h1-12 (REV) - Body ground
| Not R
| Below 1 V
|
