P0792: Intermediate Shaft Speed Sensor A Circuit Range/Performance
The P0792 code indicates that the Powertrain Control Module (PCM) has detected an issue with the intermediate shaft speed sensor 'A' circuit. This sensor monitors the rotational speed of the intermediate shaft within the transmission. The 'range/performance' part means the signal from the sensor is either out of expected range or not performing correctly, often due to a faulty sensor, wiring issues, or internal transmission problems. This can lead to improper shift timing and transmission performance.
1. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or erratic shifting
- Transmission slipping or delayed engagement
- Reduced fuel economy
2. Most Common Causes
- Faulty intermediate shaft speed sensor
- Damaged or corroded wiring/connectors to the sensor
- Transmission fluid contamination or low fluid level
- Internal transmission mechanical failure
3. Step-by-Step Diagnosis
Step 1: Scan for additional codes and freeze frame data to confirm P0792.
Step 2: Inspect the intermediate shaft speed sensor and its wiring for damage, corrosion, or loose connections.
Step 3: Test the sensor's resistance and voltage output using a multimeter; compare to manufacturer specs.
Step 4: Check transmission fluid level and condition; replace if dirty or low.
Step 5: If sensor and wiring are good, perform a transmission mechanical inspection for internal damage.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances with P0792, as it can cause transmission damage or unsafe driving conditions due to erratic shifting.
How much does it cost to fix?▼
The cost to fix P0792 typically ranges from $50 to $150 for sensor replacement, but can be higher if wiring repairs or transmission work is needed.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.