B1847
Ignition Tamper Circuit Short To Battery
B1847 is an OBD-II diagnostic trouble code meaning: Ignition Tamper Circuit Short To Battery. Common causes: damage to the wiring harness in the immobilizer circuit, short circuit to power in electrical wiring. Estimated repair cost: $56–167.
Symptoms
- The immobilizer fault indicator lights up
- Engine won't start
- Periodic malfunctions of the ignition system
Causes
- Damage to the wiring harness in the immobilizer circuit
- Short circuit to power in electrical wiring
- Immobilizer relay malfunction
- Problems with the immobilizer control module
- Corrosion of contacts in system connectors
How to Fix
- Carry out diagnostics with a scanner to determine the exact location of the fault
- Visually inspect the wiring harness for damage.
- Check continuity with a multimeter
- Test the operation of the immobilizer relay
- If necessary, replace damaged wires or immobilizer module
Related codes
FAQ
What does the B1847 code mean?
B1847 is an OBD-II diagnostic trouble code that indicates: Ignition Tamper Circuit Short To Battery
What causes a B1847 error code?
The most common causes of B1847 include: Damage to the wiring harness in the immobilizer circuit; Short circuit to power in electrical wiring; Immobilizer relay malfunction; Problems with the immobilizer control module.
How do I fix a B1847 diagnostic trouble code?
To fix B1847: Carry out diagnostics with a scanner to determine the exact location of the fault. Visually inspect the wiring harness for damage.. Check continuity with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1847?
Yes, but get it checked soon
How much does it cost to fix B1847?
The estimated repair cost for B1847 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat