CHECK NAVIGATION RECEIVER ASSEMBLY
Disconnect the H60 and H61 navigation receiver assembly connectors.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specification |
|---|---|---|---|---|
| H60-3 (ACC1) - H60-7 (GND1) | GR - BR | Power source (ACC) | Engine switch off | Below 1 V |
| Engine switch on (ACC) | 11 to 14 V | |||
| H60-4 (+B1) - H60-7 (GND1) | R - BR | Power source (+B) | Always | 11 to 14 V |
| H60-7 (GND1) - Body ground | BR - Body ground | Ground | Always | Below 1 Ω |
| H61-1 (IG) - H60-7 (GND1) | L - BR | Power source (IG) | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V |
Reconnect the H60 and H61 navigation receiver assembly connectors.
Measure the voltage and waveform according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specification |
|---|---|---|---|---|
| H61-2 (REV) - H60-7 (GND1) | R - BR | Reverse signal | Engine switch on (IG), shift lever in R | 7.5 to 14 V |
| Engine switch on (IG), shift lever not in R | Below 1 V | |||
| H62-7 (CA+) - H62-15 (CGND) | B - Shielded | Power source | Engine switch on (IG) (ACC) | 5.5 to 7.05 V |
| H62-8 (V+) - H62-15 (CGND) | R - Shielded | Display signal | Engine switch on (IG) | Pulse generation (See waveform 1) |
| Engine switch on (IG), screen blacked out by covering camera lens | Pulse generation (See waveform 2) | |||
| H62-15 (CGND) - Body ground | Shielded - Body ground | Shielded ground | Always | Below 1 V |
| *a | Waveform 1 |
| *b | Waveform 2 |
| *c | Synchronized Signal |
| *d | Video Waveform |
Using an oscilloscope, check the waveform.
Waveform 1
| Item | Content |
|---|---|
| Terminal No. (Symbol) | H62-8 (V+) - H62-15 (CGND) |
| Tool Setting | 0.2 V/DIV., 50 μs/DIV. |
| Condition | Engine switch on (IG) |
Tech Tips
The video waveform changes according to the image sent by the rear television camera assembly.
Waveform 2
| Item | Content |
|---|---|
| Terminal No. (Symbol) | H62-8 (V+) - H62-15 (CGND) |
| Tool Setting | 0.2 V/DIV., 50 μs/DIV. |
| Condition | Engine switch on (IG), screen blacked out by covering camera lens |
Tech Tips
The video waveform changes according to the image sent by the rear television camera assembly.
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here