The heated steering wheel does not warm up.
The heated steering wheel system cannot be turned OFF.
PERFORM SELF-DIAGNOSIS
With CONSULT
Power switch ON.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
Check DTC.
Is DTC detected?
B24F4-12 is detected.>>Refer to Diagnosis Procedure.
B24F4-14 is detected.>>Refer to Diagnosis Procedure.
NO>>GO TO 2.
CHECK POWER SOURCE AND GROUND CIRCUIT
Power switch OFF.
Remove the heated steering wheel. Refer to STEERING WHEEL : Removal & Installation .
Power switch ON.
Turn heated steering wheel switch ON.
Check voltage between steering wheel harness connector terminals.
steering wheel | Condition | Voltage (Approx.) | ||
Connector | Terminal | |||
M304 | 44 − 43 | Within 30 seconds after turning ON the heated steering switch. | Battery voltage | |
Other conditions. | 0 V |
Is the inspection result normal?
YES>>GO TO 3.
NO>>GO TO 4.
CHECK HEATED STEERING WHEEL
Check heated steering wheel. Refer to Component Inspection.
Is the inspection result normal?
YES>>INSPECTION END
NO>>Replace heated steering wheel. Refer to STEERING WHEEL : Removal & Installation .
CHECK GROUND CIRCUIT
Check continuity between steering wheel harness connector terminal and ground.
Steering wheel | Ground | Continuity | |
Connector | Terminal | ||
M304 | 43 | Existed |
Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair or replace damaged parts.
CHECK HARNESS BETWEEN HEATED STEERING WHEEL RELAY AND STEERING WHEEL
Power switch OFF.
Disconnect heated steering wheel relay connector. Refer to Component Parts Location.
Disconnect steering wheel connector.
Check continuity between heated steering wheel relay harness connector terminal and steering wheel harness connector terminal.
Heated steering wheel relay | Steering wheel | Continuity | ||
Connector | Terminal | Connector | Terminal | |
M118 | 5 | M304 | 44 | Existed |
Check continuity between heated steering wheel relay harness connector terminal and ground.
Heated steering wheel relay | Ground | Continuity | |
Connector | Terminal | ||
M118 | 5 | Not existed |
Is the inspection result normal?
YES>>GO TO 5.
NO>>Repair or replace damaged parts.
CHECK HEATED STEERING WHEEL RELAY
Check heated steering wheel relay. Refer to Component Inspection.
Is the inspection result normal?
YES>>GO TO 7.
NO>>Replace heated steering wheel relay. Refer to Component Parts Location.
DETECT MALFUNCTIONING ITEM
Check the following.
Battery
Harness for short or open between battery and 10A fuse (No. 70).
Harness for short or open between battery and 10A fuse (No. 82).
10A fuse (No. 70).
10A fuse (No. 82).
Is the inspection result normal?
YES>>GO TO 7.
NO>>Repair or replace damaged parts.
CHECK HARNESS BETWEEN HEATED STEERING WHEEL RELAY AND A/C AMP.
Check continuity between heated steering wheel relay harness connector terminal and A/C amp. harness connector terminal.
Heated steering wheel relay | A/C amp. | Continuity | ||
Connector | Terminal | Connector | Terminal | |
M118 | 2 | M1 | 56 | Existed |
Check continuity between heated steering wheel relay harness connector terminal and ground.
Heated steering wheel relay | Ground | Continuity | |
Connector | Terminal | ||
M118 | 2 | Not existed |
Is the inspection result normal?
YES>>GO TO 8.
NO>>Repair or replace damaged parts.
CHECK HARNESS BETWEEN HEATED STEERING RELAY AND FUSE BLOCK (J/B)
Check continuity between heated steering wheel relay harness connector terminal and fuse block (J/B) connector terminal.
Heated steering wheel relay | Fuse block (J/B | Continuity | ||
Connector | Terminal | Connector | Terminal | |
M118 | 1 | M74 | 81 | Existed |
Check continuity between heated steering wheel relay harness connector terminal and ground.
Heated steering wheel relay | Ground | Continuity | |
Connector | Terminal | ||
M118 | 1 | Not existed |
Is the inspection result normal?
YES>>Replace A/C amp. Refer to Removal and Installation.
NO>>Replace integrated interface display. Refer to Removal and Installation.
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.
Possible cause and suspected parts | Symptom | Reference | ||||
---|---|---|---|---|---|---|
Steering | ||||||
Noise | Shake | Vibration | Shimmy | Judder | ||
Outer/inner socket ball joint rotating torque | × | - | - | - | - | - |
Outer/ inner socket ball joint swinging force | × | - | - | - | - | Refer to STEERING GEAR AND LINKAGE : Inspection. |
Outer/inner socket ball joint end play | × | - | - | - | - | |
Steering wheel play | × | - | - | - | - | Refer to STEERING WHEEL : Periodic Maintenance Operation. |
Improper steering wheel | - | × | × | × | - | - |
Mounting looseness | - | × | × | × | × |
|
Steering column deformation or damage | × | - | × | - | - | Refer to STEERING COLUMN : Inspection. |
Improper installation or looseness of steering column | × | - | × | - | - | Refer to STEERING COLUMN : Exploded View. |
Steering gear and linkage looseness | - | - | - | × | × | Refer to STEERING GEAR AND LINKAGE : Exploded View. |
Front axle | × | × | × | × | × | Refer to NVH Troubleshooting Chart. |
Front drive Shaft | × | × | × | - | - | |
Rear axle | × | × | × | × | × | Refer to NVH Troubleshooting Chart. |
Front suspension | × | × | × | × | × | Refer to NVH Troubleshooting Chart. |
Rear suspension | × | × | × | × | × | Refer to NVH Troubleshooting Chart. |
Tire | × | × | × | × | × | Refer to NVH Troubleshooting Chart. |
Road Wheel | × | × | - | × | × | |
Brake | × | × | - | × | × | Refer to NVH Troubleshooting Chart. |
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