DTC B1201:15 [Connectivity Master Unit]: Notes
DTC B1201:15 (CONNECTIVITY MASTER UNIT) DETECTION CONDITION AND POSSIBLE CAUSES
| Description |
Steering switch circuit malfunction |
| Detection condition |
- The connectivity master unit (CMU) detected an open circuit or a short to the power supply in the steering switch circuit for 5 s or more with the ignition switched ON (engine off or on).
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| Fail-safe |
Not applicable |
| Possible cause |
- Clock spring connector or terminal malfunction
- Connectivity master unit (CMU) connector or terminal malfunction
- Clock spring malfunction
- Short to power supply in wiring harness between connectivity master unit (CMU) terminal 1O and clock spring terminal 1B
- Open circuit in wiring harness between the following terminals:
- Connectivity master unit (CMU) terminal 1O and clock spring terminal 1B
- Connectivity master unit (CMU) terminal 1N and clock spring terminal 1E
- Steering switch malfunction
- Connectivity master unit (CMU) malfunction
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