Lexus ES: Lost Communication with Haptic Device (B1323,B1324,B1326)
DESCRIPTION
These DTCs are stored when communication between the radio receiver assembly and remote touch (remote operation controller assembly), combination meter assembly or clock assembly is not possible.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1323 | Lost Communication with Haptic Device | CAN reception error |
|
| B1324 | Lost Communication with Meter | CAN reception error |
|
| B1326 | Lost Communication with Clock Device (Local-CAN) | CAN reception error |
|
HINT:
The radio receiver assembly is the master unit.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.
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-
When replacing the radio receiver assembly, always replace it with a new one. If a radio receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio receiver assembly may not operate normally.
- Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK DTC |
(a) Check for DTCs.
Body Electrical > Navigation System > Trouble Codes| Result | Proceed to |
|---|---|
| DTC B1323, B1324 and B1326 are not output | A |
| DTC B1323, B1324 and B1326 are output | B |
| DTC B1323 is output | C |
| DTC B1324 is output | D |
| DTC B1326 is output | E |
| A |  | USE SIMULATION METHOD TO CHECK |
| C | | GO TO STEP 15 |
| D | | GO TO STEP 17 |
| E | | GO TO STEP 19 |
|
| 2. | CHECK LOCAL BUS |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G96-2 - G96-13 | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (Below 54 Ω) | B |
| NG (70 Ω or higher) | C |
| A | | USE SIMULATION METHOD TO CHECK |
| C | | GO TO STEP 11 |
|
| 3. | CHECK HARNESS AND CONNECTOR (NO. 17 JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G96 No. 17 junction connector.
(c) Connect the G4 radio receiver assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G96-2 - G96-13 | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω |
| NG | | GO TO STEP 10 |
|
| 4. | CHECK HARNESS AND CONNECTOR (NO. 17 JUNCTION CONNECTOR - REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY)) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G96 No. 17 junction connector.
(c) Connect the G56 remote touch (remote operation controller assembly) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G96-6 - G96-17 | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω |
| NG | | GO TO STEP 9 |
|
| 5. | CHECK HARNESS AND CONNECTOR (NO. 17 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G96 No. 17 junction connector.
(c) Connect the G17 combination meter assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G96-3 - G96-14 | Cable disconnected from negative (-) battery terminal | 200 Ω or higher |
| NG | | GO TO STEP 8 |
|
| 6. | CHECK HARNESS AND CONNECTOR (NO. 17 JUNCTION CONNECTOR - CLOCK ASSEMBLY) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G96 No. 17 junction connector.
(c) Connect the G44 clock assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G96-5 - G96-16 | Cable disconnected from negative (-) battery terminal | 200 Ω or higher |
| OK | | REPLACE NO. 17 JUNCTION CONNECTOR |
|
| 7. | CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - NO. 17 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G44 clock assembly connector.
(c) Connect the G96 No. 17 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G44-5 (TX+1) - G44-6 (TX-1) | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω |
| OK | | REPLACE CLOCK ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 8. | CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 17 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G17 combination meter assembly connector.
(c) Connect the G96 No. 17 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G17-8 (TX+) - G17-7 (TX-) | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω |
| OK | | REPLACE COMBINATION METER ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 9. | CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) - NO. 17 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G56 remote touch (remote operation controller assembly) connector.
(c) Connect the G96 No. 17 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G56-9 (MO+) - G56-8 (MO-) | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω |
| OK | | REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 10. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 17 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G4 radio receiver assembly connector.
(c) Connect the G96 No. 17 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G4-5 (CNH1) - G4-6 (CNL1) | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω |
| OK | | REPLACE RADIO RECEIVER ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 11. | CHECK HARNESS AND CONNECTOR (NO. 17 JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G96 No. 17 junction connector.
(c) Connect the G4 radio receiver assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G96-2 - G96-13 | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω |
| NG | | GO TO STEP 14 |
|
| 12. | CHECK HARNESS AND CONNECTOR (NO. 17 JUNCTION CONNECTOR - REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY)) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G96 No. 17 junction connector.
(c) Connect the G56 remote touch (remote operation controller assembly) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G96-6 - G96-17 | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω |
| OK | | REPLACE NO. 17 JUNCTION CONNECTOR |
|
| 13. | CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) - NO. 17 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G56 remote touch (remote operation controller assembly) connector.
(c) Connect the G96 No. 17 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G56-9 (MO+) - G56-8 (MO-) | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω |
| OK | | REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 14. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 17 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G4 radio receiver assembly connector.
(c) Connect the G96 No. 17 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G4-5 (CNH1) - G4-6 (CNL1) | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω |
| OK | | REPLACE RADIO RECEIVER ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 15. | CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) POWER SOURCE) |
(a) Disconnect the G56 remote touch (remote operation controller assembly) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G56-10 (GND) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G56-1 (+B) - Body ground | Always | 11 to 14 V |
| G56-6 (ACC) - Body ground | Engine switch on (ACC) | 11 to 14 V |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 16. | CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) - NO. 17 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G56 remote touch (remote operation controller assembly) connector.
(c) Connect the G96 No. 17 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G56-9 (MO+) - G56-8 (MO-) | Cable disconnected from negative (-) battery terminal | 108 to 132 Ω |
| OK | | REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 17. | CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY POWER SOURCE) |
(a) Disconnect the G17 combination meter assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G17-31 (ES) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G17-22 (B) - Body ground | Always | 11 to 14 V |
| G17-21 (IG+) - Body ground | Engine switch on (IG) | 11 to 14 V |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 18. | CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 17 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G17 combination meter assembly connector.
(c) Connect the G96 No. 17 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G17-8 (TX+) - G17-7 (TX-) | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω |
| OK | | REPLACE COMBINATION METER ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 19. | CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY POWER SOURCE) |
(a) Disconnect the G44 clock assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G44-7 (E) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G44-1 (B) - Body ground | Always | 11 to 14 V |
| G44-2 (ACC) - Body ground | Engine switch on (ACC) | 11 to 14 V |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 20. | CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - NO. 17 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the G44 clock assembly connector.
(c) Connect the G96 No. 17 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G44-5 (TX+1) - G44-6 (TX-1) | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω |
| OK | | REPLACE CLOCK ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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