Combination Meter ECU Communication Stop Mode [08/2013 - ]: Procedure
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR OPEN IN CAN BUS LINES (COMBINATION METER ASSEMBLY MAIN LINE)
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Disconnect the H14 combination meter assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition H14-28 (CANH) - H14-29 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Combination Meter Assembly)
NG → REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (COMBINATION METER ASSEMBLY MAIN LINE)
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition H14-30 (ES) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Combination Meter Assembly) - Connect the cable to the negative (-) auxiliary battery terminal.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition H14-21 (IG+) - Body ground Power switch on (IG) 11 to 14 V H14-22 (B) - Body ground Power switch off 11 to 14 V
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
OK → See step 3
- Measure the resistance according to the value(s) in the table below.
- REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL [08/2013 - ]