NAVIGATION SYSTEM > Reverse Signal Circuit |

| 1.INSPECT NAVIGATION ECU |
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Disconnect the navigation ECU connector N4.
Measure the voltage according to the value(s) in the table below.
| Tester connection | Condition | Specified condition |
| REV - Body ground | Ignition switch is ON. Shift lever is moved to R position | 10 to 14 V |
| REV - Body ground | Ignition switch is ON. Shift lever is moved to any position except R. | Below 1 V |
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| NG | ||
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