Lexus ES: Tilt and Telescopic ECU Communication Stop Mode
DESCRIPTION
Detection Item | Symptom | Trouble Area |
Tilt and Telescopic ECU Communication Stop Mode | Any of the following conditions are met: | -
Multiplex tilt and telescopic ECU branch line or connector
-
Power source circuit of multiplex tilt and telescopic ECU
-
Multiplex tilt and telescopic ECU ground circuit
-
Multiplex tilt and telescopic 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 (MULTIPLEX TILT AND TELESCOPIC ECU BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G63 multiplex tilt and telescopic ECU connector.
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | G63-3 (CANP) - G63-11 (CANN) | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω | | | *a | Front view of wire harness connector (to Multiplex Tilt and Telescopic ECU) | | |
NG | | REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU) |
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 | G63-1 (GND) - Body ground | Cable disconnected from negative (-) battery terminal | Below 1 Ω | G63-8 (GND2) - Body ground | Cable disconnected from negative (-) battery terminal | Below 1 Ω | | | *a | Front view of wire harness connector (to Multiplex Tilt and Telescopic ECU) | | |
(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 |
G63-9 (ECUB) - Body ground | Always | 11 to 14 V |
G63-10 (IG) - Body ground | Engine switch on (IG) | 11 to 14 V |
OK | | REPLACE MULTIPLEX TILT AND TELESCOPIC ECU |
NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
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SEE MORE:
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL OUTER MIRROR CONTROL ECU ASSEMBLY (a) Install the outer mirror control ECU assembly with the 2 screws. (b) Connect the 2 connectors.
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