Details On DTCs
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| DESCRIPTION |
Power supply system circuit low input |
| DETECTION CONDITION |
Determination conditions |
- Any one of the following conditions is met:
- PCM terminal voltage is 6.2 V or less when engine starts.
- Battery internal resistance is specified value or more.
- Battery voltage is 11 V or less after 30 s since system began switch to relay mode
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| Preconditions |
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| Drive cycle |
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| Self test type |
|
| Sensor used |
|
| FAIL-SAFE FUNCTION |
- Inhibits the i-ELOOP control.
|
| VEHICLE STATUS WHEN DTCs ARE OUTPUT |
- Illuminates master warning light.
- The engine cannot be started or the engine may stall due to battery voltage decrease.
|
| POSSIBLE CAUSE |
- Battery malfunction
- Connector or terminal malfunction of the following parts:
- Battery
- Current sensor
- PCM
- Capacitor (i-ELOOP)
- DC-DC converter (i-ELOOP)
- Malfunction in the following fuses:
- Short to ground in wiring harness between the following terminals:
- IG1 relay terminal C-DC-DC converter (i-ELOOP) terminal 1H
- DC-DC converter (i-ELOOP) terminal 3A-Capacitor (i-ELOOP) terminal 3A
- Open circuit in wiring harness between the following terminals:
- IG1 relay terminal C-DC-DC converter (i-ELOOP) terminal 1H
- DC-DC converter (i-ELOOP) terminal 3A-Capacitor (i-ELOOP) terminal 3A
- Current sensor malfunction
- Front body control module (FBCM) malfunction
- DC-DC converter (i-ELOOP) malfunction
- PCM malfunction
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