U35xx codes: Network codes U3500-U3599
119 network trouble codes from U3500 to U3576. They mostly involve the hvil wiring, sensor wiring, hv connectors and power wiring.
All U35xx codes
105 of these codes usually turn on the check engine light; 11 can often be fixed at home.
| Code | Meaning | Difficulty |
|---|---|---|
| U3500 | Control Module Input Power A Circuit Range/Performance | Medium |
| U3501 | Control Module Input Power A Circuit Low | Easy |
| U3502 | Control Module Input Power A Circuit High | Medium |
| U3503 | Control Module Input Power A Circuit Intermittent/Erratic | Medium |
| U3504 | Control Module Input Power B Circuit Range/Performance | Medium |
| U3505 | Control Module Input Power B Circuit Low | Easy |
| U3506 | Control Module Input Power B Circuit High | Medium |
| U3507 | Control Module Input Power B Circuit Intermittent/Erratic | Medium |
| U3508 | Control Module Input Power C Circuit Range/Performance | Medium |
| U3509 | Control Module Input Power C Circuit Low | Medium |
| U350A | Control Module Input Power C Circuit High | Medium |
| U350B | Control Module Input Power C Circuit Intermittent/Erratic | Medium |
| U350C | Control Module Cooling Fan Circuit/Open | Medium |
| U350D | Control Module Cooling Fan Circuit Low | Medium |
| U350E | Control Module Cooling Fan Circuit High | Medium |
| U350F | Control Module Cooling Fan Circuit Range/Performance | Medium |
| U3510 | Control Module Missing Calibration | Workshop only |
| U3511 | High Voltage System Interlock Circuit B | Hard |
| U3512 | High Voltage System Interlock Circuit B Performance | Hard |
| U3513 | High Voltage System Interlock Circuit B Low | Hard |
| U3514 | High Voltage System Interlock Circuit B High | Hard |
| U3515 | High Voltage System Interlock Circuit C | Hard |
| U3516 | High Voltage System Interlock Circuit C Performance | Hard |
| U3517 | High Voltage System Interlock Circuit C Low | Hard |
| U3518 | High Voltage System Interlock Circuit C High | Hard |
| U3519 | High Voltage System Interlock Circuit D | Hard |
| U351A | High Voltage System Interlock Circuit D Performance | Hard |
| U351B | High Voltage System Interlock Circuit D Low | Hard |
| U351C | High Voltage System Interlock Circuit D High | Hard |
| U351D | High Voltage System Interlock Circuit E | Hard |
| U351E | High Voltage System Interlock Circuit E Performance | Workshop only |
| U351F | High Voltage System Interlock Circuit E Low | Hard |
| U3520 | High Voltage System Interlock Circuit E High | Hard |
| U3521 | High Voltage System Interlock Circuit F | Hard |
| U3522 | High Voltage System Interlock Circuit F Performance | Workshop only |
| U3523 | High Voltage System Interlock Circuit F Low | Workshop only |
| U3524 | High Voltage System Interlock Circuit F High | Hard |
| U3525 | High Voltage System Interlock Circuit G | Hard |
| U3526 | High Voltage System Interlock Circuit G Performance | Workshop only |
| U3527 | High Voltage System Interlock Circuit G Low | Hard |
| U3528 | High Voltage System Interlock Circuit G High | Hard |
| U3529 | High Voltage System Interlock Circuit H | Hard |
| U352A | High Voltage System Interlock Circuit H Performance | Workshop only |
| U352B | High Voltage System Interlock Circuit H Low | Workshop only |
| U352C | High Voltage System Interlock Circuit H High | Hard |
| U352D | High Voltage System Interlock Circuit J | Hard |
| U352E | High Voltage System Interlock Circuit J Performance | Hard |
| U352F | High Voltage System Interlock Circuit J Low | Hard |
| U3530 | High Voltage System Interlock Circuit J High | Workshop only |
| U3531 | High Voltage System Interlock Circuit K | Hard |
| U3532 | High Voltage System Interlock Circuit K Performance | Hard |
| U3533 | High Voltage System Interlock Circuit K Low | Hard |
| U3534 | High Voltage System Interlock Circuit K High | Workshop only |
| U3535 | High Voltage System Interlock Circuit L | Hard |
| U3536 | High Voltage System Interlock Circuit L Performance | Hard |
| U3537 | High Voltage System Interlock Circuit L Low | Hard |
| U3538 | High Voltage System Interlock Circuit L High | Hard |
| U3539 | High Voltage System Interlock Circuit M | Hard |
| U353A | High Voltage System Interlock Circuit M Performance | Workshop only |
| U353B | High Voltage System Interlock Circuit M Low | Hard |
| U353C | High Voltage System Interlock Circuit M High | Hard |
| U353D | High Voltage System Interlock Circuit N | Hard |
| U353E | High Voltage System Interlock Circuit N Performance | Hard |
| U353F | High Voltage System Interlock Circuit N Low | Hard |
| U3540 | High Voltage System Interlock Circuit N High | Hard |
| U3541 | High Voltage System Interlock Circuit O | Hard |
| U3542 | High Voltage System Interlock Circuit O Performance | Hard |
| U3543 | High Voltage System Interlock Circuit O Low | Hard |
| U3544 | High Voltage System Interlock Circuit O High | Hard |
| U3545 | High Voltage System Interlock Circuit P | Workshop only |
| U3546 | High Voltage System Interlock Circuit P Performance | Hard |
| U3547 | High Voltage System Interlock Circuit P Low | Workshop only |
| U3548 | High Voltage System Interlock Circuit P High | Hard |
| U3549 | Hydrogen Tank High Pressure Sensor 1 Circuit | Workshop only |
| U354A | Hydrogen Tank A Temperature Sensor 1 Circuit | Workshop only |
| U354B | Hydrogen Tank A Temperature Sensor 2 Circuit | Workshop only |
| U354C | Hydrogen Tank B Temperature Sensor 1 Circuit | Workshop only |
| U354D | Hydrogen Tank B Temperature Sensor 2 Circuit | Workshop only |
| U354E | Hydrogen Tank C Temperature Sensor 1 Circuit | Workshop only |
| U354F | Hydrogen Tank C Temperature Sensor 2 Circuit | Workshop only |
| U3550 | Hydrogen Tank A Valve Control Circuit | Workshop only |
| U3551 | Hydrogen Tank A Valve Enable Circuit | Workshop only |
| U3552 | Hydrogen Tank A Valve Performance | Workshop only |
| U3553 | Hydrogen Tank B Valve Control Circuit | Workshop only |
| U3554 | Hydrogen Tank B Valve Enable Circuit | Workshop only |
| U3555 | Hydrogen Tank B Valve Performance | Workshop only |
| U3556 | Hydrogen Tank C Valve Control Circuit | Workshop only |
| U3557 | Hydrogen Tank C Valve Enable Circuit | Workshop only |
| U3558 | Hydrogen Tank C Valve | Workshop only |
| U3559 | Air Inlet Pressure Sensor Circuit | Workshop only |
| U355A | Charge Air Cooler Outlet Pressure Sensor 1 Circuit | Workshop only |
| U355B | Charge Air Cooler Outlet Pressure Sensor 2 Circuit | Workshop only |
| U355C | Charge Air Cooler Outlet Temperature Sensor Circuit | Workshop only |
| U355D | Expander Inlet Pressure Sensor 1 Circuit | Workshop only |
| U355E | Expander Inlet Pressure Sensor 2 Circuit | Workshop only |
| U355F | Cathode Backpressure Valve Control Circuit | Workshop only |
| U3560 | Cathode Backpressure Valve Position Sensor Circuit | Workshop only |
| U3561 | Cathode Bypass Valve Control Circuit | Workshop only |
| U3562 | Cathode Bypass Valve | Workshop only |
| U3563 | Cathode Bypass Valve Position Sensor Circuit | Workshop only |
| U3564 | Hydrogen Supply Line A Pressure Sensor 1 Circuit | Workshop only |
| U3565 | Hydrogen Supply Line A Pressure Sensor 2 Circuit | Workshop only |
| U3566 | Anode Inlet Pressure Sensor 1 Circuit | Workshop only |
| U3567 | Anode Inlet Pressure Sensor 2 Circuit | Workshop only |
| U3568 | Anode Multifunction Valve Control Circuit | Workshop only |
| U3569 | Anode Multifunction Valve | Workshop only |
| U356A | Anode Drain Valve Control Circuit | Workshop only |
| U356B | Anode Drain Valve | Workshop only |
| U356C | Anode Header Drain Valve Control Circuit | Workshop only |
| U356D | Anode Header Drain Valve | Workshop only |
| U356E | Anode Drain Valve Heater Relay Control Circuit | Medium |
| U356F | Anode Header Drain Valve Heater Relay Control Circuit | Medium |
| U3570 | Stack Inlet Coolant Temperature Sensor Circuit | Hard |
| U3571 | Stack Outlet Coolant Temperature Sensor 1 Circuit | Hard |
| U3572 | Stack Outlet Coolant Temperature Sensor 2 Circuit | Hard |
| U3573 | Coolant Mixing Valve Control Circuit | Hard |
| U3574 | Coolant Mixing Valve | Hard |
| U3575 | Coolant Mixing Valve Position Sensor Circuit | Hard |
| U3576 | Stack Differential Pressure Sensor Circuit | Hard |