Lexus ES: Steering Angle Sensor Communication Stop Mode
DESCRIPTION
Detection Item | Symptom | Trouble Area |
Steering Angle Sensor Communication Stop Mode | Any of the following conditions are met: | -
Steering sensor branch line or connector
-
Power source circuit of steering sensor
-
Steering sensor ground circuit
-
Steering sensor
|
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 (STEERING SENSOR BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G62 steering sensor connector.
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | G62-3 (CANH) - G62-8 (CANL) | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω | | | *a | Front view of wire harness connector (to Steering Sensor) | | |
NG | | REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (STEERING SENSOR) |
OK | | |
2. | CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | G62-6 (ESS) - Body ground | Cable disconnected from negative (-) battery terminal | Below 1 Ω | | | *a | Front view of wire harness connector (to Steering Sensor) | | |
(b) Reconnect the cable to the negative (-) battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
G62-4 (BAT) - Body ground | Always | 11 to 14 V |
G62-9 (IG1) - Body ground | Engine switch on (IG) | 11 to 14 V |
NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
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SEE MORE:
TERMINALS OF ECU TERMINALS OF ECU *a Component without harness connected (Skid Control ECU (Brake Actuator Assembly)) - - HINT:
As a waterproof connector is used for the brake actuator assembly, voltage and waveform inspections cannot be performed with the connector connected.
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