Lexus ES: Suspension Control ECU Communication Stop Mode
DESCRIPTION
Detection Item | Symptom | Trouble Area |
Suspension Control ECU Communication Stop Mode | Any of the following conditions are met: | -
Absorber control ECU CAN branch line or connector
-
Power source circuit of absorber control ECU
-
Absorber control ECU ground circuit
-
Absorber 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 (ABSORBER CONTROL ECU BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the N32 absorber control ECU connector. | | *a | Front view of wire harness connector (to Absorber Control ECU) | | |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
N32-8 (CANH) - N32-7 (CANL) | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω |
NG | | REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (ABSORBER CONTROL 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 | N32-4 (GND) - Body ground | Cable disconnected from negative (-) battery terminal | Below 1 Ω | | | *a | Front view of wire harness connector (to Absorber Control 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 | Switch Condition | Specified Condition | N32-1 (IGB) - Body ground | Engine switch on (IG) | 11 to 14 V | | | *a | Front view of wire harness connector (to Absorber Control ECU) | | |
NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
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