Lexus ES: Hybrid Vehicle Control ECU Communication Stop Mode
DESCRIPTION
Detection Item | Symptom | Trouble Area |
Hybrid Vehicle Control ECU Communication Stop Mode | Any of the following conditions are met: | -
Hybrid vehicle control ECU branch line or connector
-
Power source circuit of hybrid vehicle control ECU
-
Hybrid vehicle control ECU ground circuit
-
Hybrid vehicle control ECU
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
-
Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
-
When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.
PROCEDURE
1. | CHECK FOR OPEN IN CAN BUS LINES (HYBRID VEHICLE CONTROL ECU BRANCH LINE) |
(a) Disconnect the cable from the negative (-) auxiliary battery terminal.
(b) Disconnect the G60 hybrid vehicle control ECU connector.
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | G60-25(CA1H) - G60-24(CA1L) | Cable disconnected from negative (-) auxiliary battery terminal | 54 to 69 Ω | G60-31(CA3P) - G60-30(CA3N) | Cable disconnected from negative (-) auxiliary battery terminal | 54 to 69 Ω | | | *a | Front view of wire harness connector (to Hybrid Vehicle Control ECU) | | |
NG | | REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (HYBRID VEHICLE CONTROL ECU) |
OK | | |
2. | CHECK ECU POWER SOURCE CIRCUIT |
(a) Check the ECU power source circuit.
-
for Nickel Metal Hydride Battery
Click here
-
for Lithium-ion Battery
Click here
NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
READ NEXT:
DESCRIPTION Detection Item Symptom Trouble Area Hybrid Vehicle Control ECU Communication Stop Mode Any of the following conditions are met:
Communication stop for "Hybrid Vehicle Contr
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DIAGNOSTIC TROUBLE CODE CHART Diagnostic Trouble Code Chart DTC No. Detection Item Trouble Area Link B1003 ECU Malfunction Central gateway ECU (network gateway ECU)
SEE MORE:
Vertical movement adjusting
bolts
Vehicles with single-beam headlights
Adjustment bolt A
Adjustment bolt B
Vehicles with triple-beam headlights
Adjustment bolt A
Adjustment bolt B
Before checking the headlight
aim
Make sure the vehicle has a full tank
of gasoline and t
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the window defogger system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshooting, confirm that the problem sym
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