Lexus ES: Air Conditioning Amplifier Communication Stop Mode
DESCRIPTION
Detection Item | Symptom | Trouble Area |
Air Conditioning Amplifier Communication Stop Mode | Any of the following conditions are met: | -
Air conditioning amplifier assembly branch line or connector
-
Power source circuit of air conditioning amplifier assembly
-
Air conditioning amplifier assembly ground circuit
-
Air conditioning amplifier assembly
|
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 (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH LINE) |
(a) Disconnect the cable from the negative (-) auxiliary battery terminal.
(b) Disconnect the G39 air conditioning amplifier assembly connector.
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | G39-11 (CANH) - G39-12 (CANL) | Cable disconnected from negative (-) auxiliary battery terminal | 54 to 69 Ω | | | *a | Front view of wire harness connector (to Air Conditioning Amplifier Assembly) | | |
NG | | REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY) |
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 | G39-4 (GND) - Body ground | Cable disconnected from negative (-) auxiliary battery terminal | Below 1 Ω | | | *a | Front view of wire harness connector (to Air Conditioning Amplifier Assembly) | | |
(b) Reconnect the cable to the negative (-) auxiliary battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
G39-1 (B) - Body ground | Power switch off | 11 to 14 V |
G39-2 (IG+) - Body ground | Power switch on (IG) | 11 to 14 V |
NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
READ NEXT:
DESCRIPTION Detection Item Symptom Trouble Area Clearance Warning ECU Communication Stop Mode Any of the following conditions are met:
Communication stop for "Clearance Warning (Intuit
DESCRIPTION Detection Item Symptom Trouble Area Skid Control ECU Communication Stop Mode Any of the following conditions are met:
Communication stop for "Skid Control (ABS/VSC/TRAC)" i
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
SEE MORE:
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects a VB sensor malfunction. The cause of this malfunction may be one of the following: Battery voltage sensor VB sensor internal circuit malfunction
Battery voltage sensor malfunction
Communication (wire harness) malfunctio
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 REAR DOOR ILLUMINATION LIGHT (REAR DOOR OUTSIDE HANDLE ASSEMBLY) Click here 2. INSTALL REAR DOOR SERVICE HOLE COVER Click here 3
© 2016-2024 Copyright www.lexguide.net