What Does P213C Mean?
The PCM detects abnormally low voltage in the EGR throttle control circuit B. This indicates either a short to ground in the circuit or a failed component not generating expected voltage.
Common Causes
35%
Wiring short to ground in EGR control circuit
30%
Failed EGR position sensor with internal short
20%
Faulty EGR valve actuator or solenoid
10%
Corroded or damaged connector causing voltage drop
5%
PCM internal circuit failure
Diagnostic Steps
1
Step 1: Check voltage at EGR position sensor connector with ignition on
2
Step 2: Inspect wiring harness for chafing, pinching, or damage causing shorts to ground
3
Step 3: Disconnect EGR valve and measure resistance of position sensor
4
Step 4: Test continuity between EGR circuit and ground with components disconnected
5
Step 5: Check for proper reference voltage from PCM to EGR system
Estimated Repair Cost
$120 - $550
Parts + labor, varies by vehicle and location
The PCM detects abnormally low voltage in the EGR throttle control circuit B. This indicates either a short to ground in the circuit or a failed component not generating expected voltage.
The most common cause of P213C (Exhaust Gas Recirculation Throttle Control Circuit "B" Low) is: Wiring short to ground in EGR control circuit
Typical repair costs for P213C range from $120 to $550, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to drive but may experience rough idle or hesitation. Vehicle will fail emissions testing and fuel economy will decrease.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P213C to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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