Code
P213B
Generic
P — Powertrain
EGR Throttle Control Circuit B Range/Performance
Views:
UK: 25
EN: 67
RU: 43
AI status
Completed
Completed
100%
Causes
- Damaged wiring or poor connector connection at EGR throttle actuator/sensor (circuit B)
- Open or short to battery or ground in circuit B
- Corroded or loose connector terminals
- Failed EGR throttle actuator or position sensor (internal fault on channel B)
- Mechanical binding or contamination of EGR throttle plate or actuator
- Low battery/charging voltage or poor ground
Symptoms
- Malfunction Indicator Lamp (MIL) illuminated
- Reduced engine power or limp-home mode
- Hesitation, rough idle, or stalling
- Poor throttle response or acceleration
- Increased emissions or failed emissions test
- Stored freeze frame and fault history in scan tool
What to check
- Read and record freeze frame and all stored codes with a suitable scan tool; note live data and PID values for EGR throttle position A and B
- Compare EGR throttle position B signal to channel A while cycling throttle/EGR commands via bidirectional scan tool
- Visually inspect wiring and connectors at the EGR throttle assembly and ECM for damage, corrosion, or loose pins
- Measure supply voltage and ground at the EGR throttle connector with key on engine off
- Check for mechanical binding of the EGR throttle plate and correct operation when operated by hand or using a scan tool actuator command
- Perform continuity and resistance checks between the connector pins and the ECM for circuit B
Signal parameters
- Position sensor B idle/closed value: typically ~0.5 V (varies by manufacturer); wide open typically ~4.0–4.5 V
- Position sensor B should track sensor A closely—difference usually
- Supply voltage to sensor/actuator: battery voltage (~12 V) with key ON; check for voltage drop under cranking
- Actuator driver current/coil resistance (if applicable): typically low ohms to tens of ohms — consult vehicle-specific data
- When commanded to move, position B PID should change smoothly and follow commanded duty cycle or position percent
Diagnostic algorithm
- Use a scan tool to read freeze frame and live data. Confirm P213B is current and note EGR throttle position A vs B behavior during key ON and while commanding EGR/throttle movement.
- Visually inspect the EGR throttle assembly, connectors and wiring for damage, corrosion, or water ingress. Repair or replace damaged connectors/harness sections.
- With key ON (engine OFF), measure reference voltage, signal voltage (sensor B), and ground at the EGR throttle connector. Verify supply and grounds are within tolerance.
- Command the EGR throttle/EGR plate via an active test and observe PID B response. If sensor B does not move or is erratic while A responds normally, suspect circuit B or sensor B failure.
- Perform continuity/resistance checks between the EGR throttle B pin and the ECM pin to find opens/shorts. Wiggle harness while monitoring signal for intermittent faults.
- If wiring and connectors are good, bench test or replace the EGR throttle assembly or position sensor (or interchange A/B sensor inputs where applicable and safe to do) to confirm component fault.
- After repair or replacement, clear codes, re-test with scan tool and perform road test to verify proper operation and that the code does not return.
- If fault persists after component and wiring checks, consider ECM diagnostics or reflashing per manufacturer procedures.
Likely causes
- Intermittent/failed connector or pin (water ingress, corrosion)
- Broken/shorted harness between ECM and EGR throttle assembly on circuit B
- Failed position sensor element or actuator driver for circuit B
- Stuck EGR throttle plate preventing expected position feedback
- Low system voltage or poor ground affecting sensor readings
Fault status
Status
ECM detected EGR throttle control circuit B out-of-range or poor performance; fault stored and MIL set until confirmed repaired.
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 hours
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Code
P213B
LAND ROVER
P — Powertrain
Throttle control of exhaust gas recirculation - circuit B scope / performance
Views:
UK: 15
EN: 48
RU: 31
AI status
Completed
Completed
100%
Causes
- Damaged wiring or poor connector connection at EGR throttle actuator/sensor (circuit B)
- Open or short to battery or ground in circuit B
- Corroded or loose connector terminals
- Failed EGR throttle actuator or position sensor (internal fault on channel B)
- Mechanical binding or contamination of EGR throttle plate or actuator
- Low battery/charging voltage or poor ground
Symptoms
- Malfunction Indicator Lamp (MIL) illuminated
- Reduced engine power or limp-home mode
- Hesitation, rough idle, or stalling
- Poor throttle response or acceleration
- Increased emissions or failed emissions test
- Stored freeze frame and fault history in scan tool
What to check
- Read and record freeze frame and all stored codes with a suitable scan tool; note live data and PID values for EGR throttle position A and B
- Compare EGR throttle position B signal to channel A while cycling throttle/EGR commands via bidirectional scan tool
- Visually inspect wiring and connectors at the EGR throttle assembly and ECM for damage, corrosion, or loose pins
- Measure supply voltage and ground at the EGR throttle connector with key on engine off
- Check for mechanical binding of the EGR throttle plate and correct operation when operated by hand or using a scan tool actuator command
- Perform continuity and resistance checks between the connector pins and the ECM for circuit B
Signal parameters
- Position sensor B idle/closed value: typically ~0.5 V (varies by manufacturer); wide open typically ~4.0–4.5 V
- Position sensor B should track sensor A closely—difference usually
- Supply voltage to sensor/actuator: battery voltage (~12 V) with key ON; check for voltage drop under cranking
- Actuator driver current/coil resistance (if applicable): typically low ohms to tens of ohms — consult vehicle-specific data
- When commanded to move, position B PID should change smoothly and follow commanded duty cycle or position percent
Diagnostic algorithm
- Use a scan tool to read freeze frame and live data. Confirm P213B is current and note EGR throttle position A vs B behavior during key ON and while commanding EGR/throttle movement.
- Visually inspect the EGR throttle assembly, connectors and wiring for damage, corrosion, or water ingress. Repair or replace damaged connectors/harness sections.
- With key ON (engine OFF), measure reference voltage, signal voltage (sensor B), and ground at the EGR throttle connector. Verify supply and grounds are within tolerance.
- Command the EGR throttle/EGR plate via an active test and observe PID B response. If sensor B does not move or is erratic while A responds normally, suspect circuit B or sensor B failure.
- Perform continuity/resistance checks between the EGR throttle B pin and the ECM pin to find opens/shorts. Wiggle harness while monitoring signal for intermittent faults.
- If wiring and connectors are good, bench test or replace the EGR throttle assembly or position sensor (or interchange A/B sensor inputs where applicable and safe to do) to confirm component fault.
- After repair or replacement, clear codes, re-test with scan tool and perform road test to verify proper operation and that the code does not return.
- If fault persists after component and wiring checks, consider ECM diagnostics or reflashing per manufacturer procedures.
Likely causes
- Intermittent/failed connector or pin (water ingress, corrosion)
- Broken/shorted harness between ECM and EGR throttle assembly on circuit B
- Failed position sensor element or actuator driver for circuit B
- Stuck EGR throttle plate preventing expected position feedback
- Low system voltage or poor ground affecting sensor readings
Fault status
Status
ECM detected EGR throttle control circuit B out-of-range or poor performance; fault stored and MIL set until confirmed repaired.
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 hours
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Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
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👍 Like
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