Navigation Receiver Assembly Communication Stop Mode [10/2015 - ]: Procedure
- CHECK FOR OPEN IN CAN BUS LINES (NAVIGATION ECU SUB-ASSEMBLY BRANCH LINE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the E20 navigation ECU sub-assembly connector.
*a Front view of wire harness connector
(to Navigation ECU Sub-assembly) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition E20-9 (CANH) - E20-10 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω Result
Result OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY)
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Disconnect the E17 navigation ECU sub-assembly connector.
*a Front view of wire harness connector
(to Navigation ECU Sub-assembly) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition E17-7 (GND1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω - Reconnect the cable to the negative (-) auxiliary battery terminal.
- Measure the voltage according to the value(s) in the table below.
*a Front view of wire harness connector
(to Navigation ECU Sub-assembly)Standard Voltage
Tester Connection Condition Specified Condition E17-3 (ACC1) - Body ground Power switch on (ACC) 11 to 14 V E17-4 (+B1) - Body ground Power switch off 11 to 14 V E20-1 (IG) - Body ground Power switch on (IG) 11 to 14 V Result
Result OK NG
Result:
OK
REPLACE NAVIGATION ECU SUB-ASSEMBLY. Refer to REMOVAL [10/2014 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Disconnect the E17 navigation ECU sub-assembly connector.