DTC P1794:16 [Advanced Keyless Entry And Push Button Start System]: Notes
WARNING: This page is about a different car, the 2010 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DTC P1794:16 (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM) DETECTION CONDITION AND POSSIBLE CAUSE
| DESCRIPTION |
Low voltage in power supply circuit (+B2) |
| DETECTION CONDITION |
- Keyless control module power supply circuit (+B2) voltage is less than 8.5 V for 5 s
.
|
| POSSIBLE CAUSE |
- Charging system malfunction
- Battery malfunction
- Generator malfunction
- Keyless control module connector or terminals malfunction
- Open circuit or short to ground in keyless control module power supply circuit
- Short to ground in wiring harness between battery positive terminal and keyless control module terminal 1F
- ENG+B 10 A fuse malfunction
- Open circuit in wiring harness between battery positive terminal and keyless control module terminal 1F
- Keyless control module malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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