Combination Meter ECU Communication Stop Mode [08/2015 - ]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
2. Disconnect the I18 combination meter assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I18-17 (CANH) - I18-16 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

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   *a	Front view of wire harness connector (to Combination Meter Assembly)

NG → REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (COMBINATION METER ASSEMBLY) 

OK: Go to next step 

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I18-11 (EP) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω

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   *a	Front view of wire harness connector (to Combination Meter Assembly)

2. Reconnect the cable to the negative (-) battery terminal.
3. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   I18-13 (IG+) - Body ground	Ignition switch ON	11 to 14 V
   I18-1 (B) - Body ground	Ignition switch off	11 to 14 V

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   *a	Front view of wire harness connector (to Combination Meter Assembly)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

OK → See step   3