CLEARANCE WARNING ECU ASSEMBLY
Disconnect the I28 clearance warning ECU assembly connector.
Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| I28-1 (IG) - I28-30 (E) | L - W-B | IG power source signal | Power switch off | Below 1 V |
| Power switch on (IG) | 11 to 14 V | |||
| I28-30 (E) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
Reconnect the I28 clearance warning ECU assembly connector.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| I28-29 (ISSW) - I28-30 (E) | B - W-B | S-IPA switch signal | Power switch on (IG), S-IPA switch pressed | Below 1 V |
| Power switch on (IG), S-IPA switch not pressed | 9.5 to 14 V |
If the result is not as specified, the clearance warning ECU assembly may be malfunctioning.