Fault code lookup

BodyB1318

Caution

Severity: Caution - get it checked when you can

Battery Voltage Low

23 brands affected · Generic SAE J2012 description.

Key terms: SAE J2012: the standard generic code list

Safety: This code relates to the charging system. The battery may go flat and the car may stall.

1What it means in plain English

The battery voltage is lower than expected, so the charging system may be struggling or the battery may be failing.

2Common causes

  1. Weak or failing battery
  2. Faulty alternator or voltage regulator
  3. Loose or corroded battery terminals
  4. Parasitic drain when the car is parked
  5. Damaged charging circuit wiring

3Can I drive?

Caution · drive with care

If the battery or charging warning light is on or the car is slow to start, drive straight to a workshop: the car can stall when the battery runs flat. Avoid unnecessary electrical loads.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 23

BrandCodeDescriptionSystem
Ashok Leyland CVB1318Battery Voltage Low SAEBody
Mercedes-BenzB1318Battery Voltage Low SAEBody
BYDB1318Valve actuation BrandBody
CheryB1318Valve actuation BrandBody
DaewooB1318Front Power Windows,Low Input in Down Mode BrandBody
DFFXB1318Valve actuation BrandBody
FordB13182007 RANGER - CRANK/NO START - DIAGNOSTIC TROUBLE CODE (DTC) P1260, U2510, AND - NO MALFUNCTION INDICATOR LAMP BrandBody
GeelyB1318Valve actuation BrandBody
GMB1318LH sun load sensor fault BrandBody
Great WallB1318Valve actuation BrandBody
HafeiB1318Valve actuation BrandBody
HoldenB1318Front Windows Down Circuit BrandBody
Land RoverB1318Battery Voltage Low SAEBody
MazdaB13182007 RANGER - CRANK/NO START - DIAGNOSTIC TROUBLE CODE (DTC) P1260, U2510, AND - NO MALFUNCTION INDICATOR LAMP BrandBody
MitsubishiB1318Valve actuation BrandBody
OpelB1318LH sun load sensor fault BrandBody
PeugeotB1318Battery Voltage Low SAEBody
ProtonB1318Valve actuation BrandBody
SaabB1318LH sun load sensor fault BrandBody
SprinterB1318Battery Voltage Low SAEBody
SuzukiB1318OCM communication data invalid BrandBody
TataB1318Battery Voltage Low SAEBody
ToyotaB1318Battery Voltage Low SAEBody

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of B1318 and may be reported by some scan tools.

BrandCodeDescriptionSystem
SsangYongB131800CAN: key condition message not received(time out)(limp home) BrandBody

6Related codes

  • B1310 OAT sensor open fault
  • B1311 outside air temp sensor short circuit
  • B1312 Left turn lamp circuit open
  • B1313 Left turn lamp circuit short to ground
  • B1314 Right turn lamp circuit open
  • B1315 Right turn lamp circuit short to ground
  • B1316 in car temperature sensor open circuit
  • B1317 in car air temperature sensor
  • B1319 sunload sensor short circuit
  • B131A Delayed Accessory Power
  • B131B Internal button lighting control failure
  • B131C Passenger cabin blower failure

Browse Bxxx codes or B131xx codes.

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