DESCRIPTION
This DTC is stored if the parking assist ECU judges as a result of its self check that the voltage received by terminal IG is low or high.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1612 |
|
|
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
READ VALUE USING INTELLIGENT TESTER
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the intelligent tester on.
Enter the following menus: Chassis / Parking Assist Monitor System / Data List.
Check the Data List for proper functioning of the following items.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| IG Voltage Low Status | IG voltage input to parking assist ECU/OK or NG | OK: IG voltage is normal NG: IG voltage is abnormal (too low) |
- |
| IG Voltage High Status | IG voltage input to parking assist ECU/OK or NG | OK: IG voltage is normal NG: IG voltage is abnormal (too high) |
- |
| Result | Proceed to |
|---|---|
| OK is displayed for both items (for LHD) | A |
| OK is displayed for both items (for RHD) | B |
| NG is displayed for either item | C |
| B |
|
REPLACE PARKING ASSIST ECU Click here |
| C |
|
CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU IG VOLTAGE) Click here |
| A |
|
REPLACE PARKING ASSIST ECU Click here
CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU IG VOLTAGE)
| *a | Front view of wire harness connector (to Parking Assist ECU) |
Disconnect the I3 parking assist ECU connector.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
USE SIMULATION METHOD TO CHECK Click here