DESCRIPTION These DTCs are
stored when communication between the radio and display receiver
assembly and combination meter assembly or headup display (meter mirror
sub-assembly) is not possible. |
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area | |
B1324 | Lost Communication with Meter |
CAN reception error |
- Local bus communication line
- Combination meter power source circuit
- Combination meter assembly
- Radio and display receiver assembly
- Harness or connector
- No. 25 junction connector
| | B1325 |
Lost Communication with HUD |
CAN reception error |
- Local bus communication line
- Headup display (meter mirror sub-assembly) power source circuit
- Headup display (meter mirror sub-assembly)
- Radio and display receiver assembly
- Harness or connector
- No. 25 junction connector
| HINT: The radio and display 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 Navigation System.
- When replacing the radio and display receiver assembly, always replace
it with a new one. If a radio and display receiver assembly which was
installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.
- Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE (a) Check for DTCs and check that no DTCs are output. Body Electrical > Navigation System > Trouble Codes
|
Result | Proceed to | |
DTC B1324 and B1325 are not output |
A | | DTC B1324 and B1325 are output |
B | | DTC B1324 is output |
C | | DTC B1325 is output |
D |
| A |
 | USE SIMULATION METHOD TO CHECK |
| C |
| GO TO STEP 11 |
| D |
| GO TO STEP 16 |
|
B |
 | |
(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 | |
G93-9 - G93-20 | 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 9 |
|
B | |
| |
| 3. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G93 No. 25 junction connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G93-9 - G93-20 | Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| NG |
| GO TO STEP 8 |
|
OK | |
| |
| 4. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G93 No. 25 junction connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G93-10 - G93-21 | Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| NG |
| GO TO STEP 7 |
|
OK | |
| |
| 5. |
CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G93 No. 25 junction connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G93-11 - G93-22 | Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
| OK |
| REPLACE NO. 25 JUNCTION CONNECTOR |
|
NG | |
| |
| 6. |
CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the H1 headup display (meter mirror sub-assembly) connector.
(c) Connect the G93 No. 25 junction connector. (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
H1-14 (TX+) - H1-15 (TX-) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
| OK |
| REPLACE HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 7. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G16 combination meter assembly connector.
(c) Connect the G93 No. 25 junction connector. (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G16-36 (TX+) - G16-37 (TX-) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
| REPLACE COMBINATION METER ASSEMBLY |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 8. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G2 radio and display receiver assembly connector.
(c) Connect the G93 No. 25 junction connector. (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G2-5 (CNH1) - G2-6 (CNL1) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
| REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 9. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G2 radio and display receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G2-5 (CNH1) - G2-6 (CNL1) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
| REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
NG | |
| |
| 10. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G93 No. 25 junction connector.
(c) Connect the G2 radio and display receiver assembly connector. (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G93-9 - G93-20 | Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
| REPLACE NO. 25 JUNCTION CONNECTOR |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 11. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY POWER SOURCE) |
(a) Disconnect the G16 combination meter assembly connector. (b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G16-21 (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 | |
G16-40 (B) - Body ground |
Always | 11 to 14 V | |
G16-39 (IG+) - Body ground |
Engine switch on (IG) |
11 to 14 V |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 12. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G93 No. 25 junction connector.
(c) Connect the G16 combination meter assembly connector. (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G93-10 - G93-21 | Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| NG |
| GO TO STEP 15 |
|
OK | |
| |
| 13. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G93 No. 25 junction connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G93-9 - G93-20 | Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
| REPLACE NO. 25 JUNCTION CONNECTOR |
|
NG | |
| |
| 14. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G2 radio and display receiver assembly connector.
(c) Connect the G93 No. 25 junction connector. (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G2-5 (CNH1) - G2-6 (CNL1) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
| REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 15. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G16 combination meter assembly connector.
(c) Connect the G93 No. 25 junction connector. (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G16-36 (TX+) - G16-37 (TX-) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
| REPLACE COMBINATION METER ASSEMBLY |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 16. |
CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) POWER SOURCE) |
(a) Disconnect the H1 headup display (meter mirror sub-assembly) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
H1-4 (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 | |
H1-2 (B) - Body ground |
Always | 11 to 14 V | |
H1-1 (IG) - Body ground |
Engine switch on (IG) |
11 to 14 V |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 17. |
CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G93 No. 25 junction connector.
(c) Connect the H1 headup display (meter mirror sub-assembly) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G93-11 - G93-22 | Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
| NG |
| GO TO STEP 20 |
|
OK | |
| |
| 18. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G93 No. 25 junction connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G93-9 - G93-20 | Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
| REPLACE NO. 25 JUNCTION CONNECTOR |
|
NG | |
| |
| 19. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the G2 radio and display receiver assembly connector.
(c) Connect the G93 No. 25 junction connector. (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G2-5 (CNH1) - G2-6 (CNL1) |
Cable disconnected from negative (-) battery terminal |
108 to 132 Ω |
| OK |
| REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 20. |
CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - NO. 25 JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) battery terminal. (b) Disconnect the H1 headup display (meter mirror sub-assembly) connector.
(c) Connect the G93 No. 25 junction connector. (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
H1-14 (TX+) - H1-15 (TX-) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
| OK |
| REPLACE HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR | | 
