P0812 Chrysler Code - Reverse Input Circuit
Quick Answer
The P0812 code for Chrysler vehicles indicates a problem with the reverse input circuit. Common causes include Faulty reverse input sensor, Wiring issues or a short circuit in the reverse input circuit, Malfunctioning ECM or TCM. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0812 Chrysler indicates Reverse Input Circuit.
- Common causes
- Common causes include Faulty reverse input sensor, Wiring issues or a short circuit in the reverse input circuit, Malfunctioning ECM or TCM.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0812 Chrysler Description
The P0812 code for Chrysler vehicles indicates a problem with the reverse input circuit. This circuit is responsible for transmitting signals related to the vehicle being in reverse gear to the engine control module (ECM) or transmission control module (TCM). When this circuit malfunctions, it can lead to issues with the vehicle's ability to engage or disengage reverse gear properly. This can result in difficulties in shifting into reverse, delayed engagement, or even complete failure to engage reverse gear.
Common Causes of P0812 Chrysler
- Faulty reverse input sensor
- Wiring issues or a short circuit in the reverse input circuit
- Malfunctioning ECM or TCM
- Transmission fluid contamination or low fluid level
- Mechanical issues within the transmission related to reverse gear engagement
Symptoms of P0812 Chrysler
- Difficulty shifting into reverse gear
- Delayed engagement when shifting into reverse
- Harsh or erratic shifting while in reverse
- Illumination of the Check Engine Light
- Loss of power or acceleration when in reverse
How to Fix P0812 Chrysler
- Diagnose the specific cause of the issue by conducting a thorough inspection of the reverse input circuit, sensor, and related components.
- Test the reverse input sensor using a multimeter to check for proper voltage and resistance readings.
- Inspect the wiring for any signs of damage, corrosion, or loose connections, and repair or replace as needed.
- Check the transmission fluid level and condition, topping off or performing a fluid flush if necessary.
- If the issue persists, consider consulting a professional technician or mechanic for further diagnosis and repair.
Cost to Fix P0812 Chrysler
The cost of repairing a P0812 code can vary depending on the specific cause of the issue and the extent of repairs needed. On average, the repair cost for this type of issue can range from $100 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary significantly, so it's advisable to obtain quotes from multiple shops to compare prices. Additionally, the cost may be higher if any components need to be replaced or if more extensive repairs are required.
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