Circuit Inspection
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
|---|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | ||
|
HUD connector | 7 (C-CAN high) | Chassis ground | - | Fig. 1 |
| HUD connector | 8 (C-CAN low) | Chassis ground | - | ||
|
HUD connector | 2, 3 (power) | Chassis ground | B+ | |
|
HUD connector | 11, 12 (ground) | Chassis ground | - | Approx. below 1Ω |
|
HUD connector | 7 (C-CAN high) | HUD connector | 8 (C-CAN low) | Approx. 60Ω |
|
CLU (component side) | 32 (C-CAN high) | CLU (component side) | 33 (C-CAN low) | Approx. 120Ω |
| ICU (component side) | 11 (C-CAN high) | ICU (component side) | 10 (C-CAN low) | Approx. 120Ω | |
Good
- Disconnect C-CAN communication units one by one and monitor DTC to find the cause.
- If the DTC erase, substitute with a known-good unit and check for proper operation. If the problem is corrected, replace the unit and go to "VERIFICATION OF REPAIR " procedure.
No Good
- Check for open, short to battery and short to ground in C-CAN line.
- Repair as necessary and go to "VERIFICATION OF REPAIR " procedure.