Lexus ES: Tire Pressure Monitor ECU Communication Stop Mode
DESCRIPTION
Detection Item | Symptom | Trouble Area |
Tire Pressure Monitor ECU Communication Stop Mode | Any of the following conditions are met: | -
Tire pressure warning ECU and receiver branch line or connector
-
Power source circuit of tire pressure warning ECU and receiver
-
Tire pressure warning ECU and receiver ground circuit
-
Tire pressure warning ECU and receiver
|
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 (TIRE PRESSURE WARNING ECU AND RECEIVER BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the N8 tire pressure warning ECU and receiver connector.
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | N8-9 (CANH) - N8-10 (CANL) | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω | | | *a | Front view of wire harness connector (to Tire Pressure Warning ECU and Receiver) | | |
NG | | REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (TIRE PRESSURE WARNING ECU AND RECEIVER) |
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 | N8-12 (GND) - Body ground | Cable disconnected from negative (-) battery terminal | Below 1 Ω | | | *a | Front view of wire harness connector (to Tire Pressure Warning ECU and Receiver) | | |
(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 |
N8-1 (IG) - Body ground | Engine switch on (IG) | 11 to 14 V |
N8-7 (+B) - Body ground | Always | 11 to 14 V |
NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
READ NEXT:
DESCRIPTION Detection Item Symptom Trouble Area Front Camera Module Communication Stop Mode Any of the following conditions are met:
Communication stop for "Front Camera Module" is ind
DESCRIPTION When the CAN bus main lines are normal (no open, short to ground, short to +B or short between lines) and there is an ECU or sensor on the "Communication Bus Check" screen that is indicate
DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 4
SEE MORE:
DESCRIPTION Power is supplied to the No. 1 stereo jack adapter assembly illumination from the radio receiver assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or cali
INSTALLATION
CAUTION / NOTICE / HINT
NOTICE:
Immediately after installing the brake pads, the braking performance
may be reduced. Always perform a road test in a safe place while paying
attention to the surroundings.
After replacing the front disc brake pads, the brake pedal m
© 2016-2024 Copyright www.lexguide.net