Code
B2201
Generic
B — Body
No Communication With Traffic MasterModule
Views:
UK: 25
EN: 36
RU: 27
AI status
Completed
Completed
100%
Causes
- Faulty or powered-off Traffic Master Module
- Open or shorted CAN/LIN data bus wiring or connectors
- Blown fuse or missing power/ignition feed to the module
- Poor or open ground(s)
- Network termination fault (open or shorted termination resistors)
- Software/firmware mismatch or corrupted module programming
Symptoms
- No traffic data or navigation-related services available
- Warning message about module or communication fault on cluster or infotainment
- Other modules reporting network communication errors
- Intermittent loss of related features or sporadic behavior
- DTC stored/active and inability to communicate with TMM using a scan tool
What to check
- Read all network-related DTCs with a capable scan tool and note status (current/historic)
- Verify battery voltage and battery condition
- Check fuses and power feeds for the Traffic Master Module (ignition-switched and constant)
- Verify module ground(s) for continuity to chassis
- Attempt to communicate with the TMM using OEM scan tool; note response and bus errors
- Visually inspect TMM connector and wiring for corrosion, damage, or water intrusion
Signal parameters
- CAN bus frames/messages: TMM should transmit and receive specific CAN IDs (use OEM network list)
- CAN High/CAN Low idle voltages ~2.5 V each (verify nominal voltages with key ON)
- Bus differential voltage when active ~1.0–3.0 V (dependent on network load)
- Bus termination resistance expected within nominal range (refer to OEM, typically low tens to ~120 ohms across CAN_H and CAN_L with key OFF)
- Power voltage at module 12 V (battery) and switched ignition feed present when required
- Module ground resistance very low (
Diagnostic algorithm
- Retrieve freeze frame and all related DTCs. Confirm B2201 is current and note any U-/B-codes.
- Verify battery voltage >=12 V and good battery connections. Some modules enter sleep with low voltage.
- Check fuses and relays feeding the Traffic Master Module; restore any blown fuses and retest communication.
- With ignition ON, attempt communication with an OEM-level scan tool. Observe bus errors and whether the module responds.
- Inspect the TMM connector for bent pins, corrosion, or moisture. Back-probe power and ground pins: verify 12 V (or specified feed) and good chassis ground.
- Check CAN/LIN wiring continuity from the TMM connector to nearest network gateway or junction module. Repair any opens, shorts to ground or battery, and loose splice connections.
- Measure CAN_H/CAN_L voltages with key ON and compare to expected ranges. Use an oscilloscope to confirm valid CAN frames if available.
- Verify termination resistance across CAN_H and CAN_L with key OFF. Investigate if resistance is out of expected range (open or shorted termination).
- Disconnect any aftermarket devices on the bus. Clear codes and re-scan to see if code returns.
- Reflash or update the Traffic Master Module software if a manufacturer service bulletin or update exists and scan tool indicates software mismatch.
- If wiring, power, and grounds are good and the module still does not communicate, consider module replacement per OEM procedures. Program/configure replacement module before final test.
- After repairs, clear DTCs and verify normal communication and operation over a road test or extended key cycles as specified.
Likely causes
- Blown fuse or lost ignition power to the Traffic Master Module
- Damaged connector or corrosion at the TMM harness
- CAN bus short or open near the module or wiring harness damage
- Defective Traffic Master Module
- Vehicle module configuration or software issue after service or battery disconnect
Fault status
Status
No Communication With Traffic Master Module (lost communication on vehicle network)
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Workshop Manuals
Available brands with manuals
2
AUDI 11
6-speed manual gearbox 0B1, front-wheel drive — Workshop Manual (Edition 05.2014)
Workshop Manual199,00 UAH
Audi A3 (1997) – 1.6L 4-cylinder (2‑valve) Engine Mechanical Components Service Manual (AEH, AKL, APF) – Edition 07.2002
Workshop Manual199,00 UAH
AUDI A3 (2004) Workshop Manual — 2.0L FSI Turbo (4‑cyl, 4‑valve) Engine, Mechanics — Edition 03.2017
Workshop Manual199,00 UAH
Audi A3 2004 — Electrical System (Workshop Manual, Edition 02.2018)
Workshop Manual199,00 UAH
Audi A4 / A4 Cabriolet – 4.2 l V8 (5‑valve, timing chains) – Workshop Manual (Mechanics) – Edition 04.2007
Workshop Manual199,00 UAH
Audi A4 / A4 Cabriolet — Auxiliary Heater Workshop Manual (Edition 08.2004)
Workshop Manual199,00 UAH
Audi A4 / A4 Cabriolet (1.8T 4‑cyl turbo) — Motronic Injection & Ignition System Service Manual (Edition 01.2015)
Workshop Manual199,00 UAH
Audi A8 (2003) — Electrical System Workshop Manual (Edition 08.2014)
Workshop Manual199,00 UAH
Audi Q4 e-tron (Type F4) - Self-study Programme SSP 685
Workshop Manual199,00 UAH
Audi Q8 (2018) — Electrical System Workshop Manual (Edition 05.2019)
Workshop Manual199,00 UAH
Audi Servicing Manual — 7‑Speed Dual Clutch Transmission 0CJ / 0CL / 0CK / 0DN / 0DP / 0HL (Edition 05.2018)
Workshop Manual199,00 UAH
LAND ROVER 3
Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
Workshop Manual199,00 UAH
Land Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)
Workshop Manual199,00 UAH
Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)
Workshop Manual199,00 UAH
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Code
B2201
HUMMER
B — Body
Left Front Window Switch Stuck in Down Position
Views:
UK: 14
EN: 20
RU: 16
AI status
Completed
Completed
100%
Causes
- Faulty or powered-off Traffic Master Module
- Open or shorted CAN/LIN data bus wiring or connectors
- Blown fuse or missing power/ignition feed to the module
- Poor or open ground(s)
- Network termination fault (open or shorted termination resistors)
- Software/firmware mismatch or corrupted module programming
Symptoms
- No traffic data or navigation-related services available
- Warning message about module or communication fault on cluster or infotainment
- Other modules reporting network communication errors
- Intermittent loss of related features or sporadic behavior
- DTC stored/active and inability to communicate with TMM using a scan tool
What to check
- Read all network-related DTCs with a capable scan tool and note status (current/historic)
- Verify battery voltage and battery condition
- Check fuses and power feeds for the Traffic Master Module (ignition-switched and constant)
- Verify module ground(s) for continuity to chassis
- Attempt to communicate with the TMM using OEM scan tool; note response and bus errors
- Visually inspect TMM connector and wiring for corrosion, damage, or water intrusion
Signal parameters
- CAN bus frames/messages: TMM should transmit and receive specific CAN IDs (use OEM network list)
- CAN High/CAN Low idle voltages ~2.5 V each (verify nominal voltages with key ON)
- Bus differential voltage when active ~1.0–3.0 V (dependent on network load)
- Bus termination resistance expected within nominal range (refer to OEM, typically low tens to ~120 ohms across CAN_H and CAN_L with key OFF)
- Power voltage at module 12 V (battery) and switched ignition feed present when required
- Module ground resistance very low (
Diagnostic algorithm
- Retrieve freeze frame and all related DTCs. Confirm B2201 is current and note any U-/B-codes.
- Verify battery voltage >=12 V and good battery connections. Some modules enter sleep with low voltage.
- Check fuses and relays feeding the Traffic Master Module; restore any blown fuses and retest communication.
- With ignition ON, attempt communication with an OEM-level scan tool. Observe bus errors and whether the module responds.
- Inspect the TMM connector for bent pins, corrosion, or moisture. Back-probe power and ground pins: verify 12 V (or specified feed) and good chassis ground.
- Check CAN/LIN wiring continuity from the TMM connector to nearest network gateway or junction module. Repair any opens, shorts to ground or battery, and loose splice connections.
- Measure CAN_H/CAN_L voltages with key ON and compare to expected ranges. Use an oscilloscope to confirm valid CAN frames if available.
- Verify termination resistance across CAN_H and CAN_L with key OFF. Investigate if resistance is out of expected range (open or shorted termination).
- Disconnect any aftermarket devices on the bus. Clear codes and re-scan to see if code returns.
- Reflash or update the Traffic Master Module software if a manufacturer service bulletin or update exists and scan tool indicates software mismatch.
- If wiring, power, and grounds are good and the module still does not communicate, consider module replacement per OEM procedures. Program/configure replacement module before final test.
- After repairs, clear DTCs and verify normal communication and operation over a road test or extended key cycles as specified.
Likely causes
- Blown fuse or lost ignition power to the Traffic Master Module
- Damaged connector or corrosion at the TMM harness
- CAN bus short or open near the module or wiring harness damage
- Defective Traffic Master Module
- Vehicle module configuration or software issue after service or battery disconnect
Fault status
Status
No Communication With Traffic Master Module (lost communication on vehicle network)
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Was this AI description helpful?
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Code
B2201
LAND ROVER
B — Body
No communication to the TrafficMaster Module
Views:
UK: 9
EN: 16
RU: 12
AI status
Completed
Completed
100%
Causes
- Faulty or powered-off Traffic Master Module
- Open or shorted CAN/LIN data bus wiring or connectors
- Blown fuse or missing power/ignition feed to the module
- Poor or open ground(s)
- Network termination fault (open or shorted termination resistors)
- Software/firmware mismatch or corrupted module programming
Symptoms
- No traffic data or navigation-related services available
- Warning message about module or communication fault on cluster or infotainment
- Other modules reporting network communication errors
- Intermittent loss of related features or sporadic behavior
- DTC stored/active and inability to communicate with TMM using a scan tool
What to check
- Read all network-related DTCs with a capable scan tool and note status (current/historic)
- Verify battery voltage and battery condition
- Check fuses and power feeds for the Traffic Master Module (ignition-switched and constant)
- Verify module ground(s) for continuity to chassis
- Attempt to communicate with the TMM using OEM scan tool; note response and bus errors
- Visually inspect TMM connector and wiring for corrosion, damage, or water intrusion
Signal parameters
- CAN bus frames/messages: TMM should transmit and receive specific CAN IDs (use OEM network list)
- CAN High/CAN Low idle voltages ~2.5 V each (verify nominal voltages with key ON)
- Bus differential voltage when active ~1.0–3.0 V (dependent on network load)
- Bus termination resistance expected within nominal range (refer to OEM, typically low tens to ~120 ohms across CAN_H and CAN_L with key OFF)
- Power voltage at module 12 V (battery) and switched ignition feed present when required
- Module ground resistance very low (
Diagnostic algorithm
- Retrieve freeze frame and all related DTCs. Confirm B2201 is current and note any U-/B-codes.
- Verify battery voltage >=12 V and good battery connections. Some modules enter sleep with low voltage.
- Check fuses and relays feeding the Traffic Master Module; restore any blown fuses and retest communication.
- With ignition ON, attempt communication with an OEM-level scan tool. Observe bus errors and whether the module responds.
- Inspect the TMM connector for bent pins, corrosion, or moisture. Back-probe power and ground pins: verify 12 V (or specified feed) and good chassis ground.
- Check CAN/LIN wiring continuity from the TMM connector to nearest network gateway or junction module. Repair any opens, shorts to ground or battery, and loose splice connections.
- Measure CAN_H/CAN_L voltages with key ON and compare to expected ranges. Use an oscilloscope to confirm valid CAN frames if available.
- Verify termination resistance across CAN_H and CAN_L with key OFF. Investigate if resistance is out of expected range (open or shorted termination).
- Disconnect any aftermarket devices on the bus. Clear codes and re-scan to see if code returns.
- Reflash or update the Traffic Master Module software if a manufacturer service bulletin or update exists and scan tool indicates software mismatch.
- If wiring, power, and grounds are good and the module still does not communicate, consider module replacement per OEM procedures. Program/configure replacement module before final test.
- After repairs, clear DTCs and verify normal communication and operation over a road test or extended key cycles as specified.
Likely causes
- Blown fuse or lost ignition power to the Traffic Master Module
- Damaged connector or corrosion at the TMM harness
- CAN bus short or open near the module or wiring harness damage
- Defective Traffic Master Module
- Vehicle module configuration or software issue after service or battery disconnect
Fault status
Status
No Communication With Traffic Master Module (lost communication on vehicle network)
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Workshop Manuals
Repair manuals for LAND ROVER
3
Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
Workshop Manual199,00 UAH
Land Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)
Workshop Manual199,00 UAH
Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)
Workshop Manual199,00 UAH
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
Code
B2201
MITSUBISHI
B — Body
Calibration
Views:
UK: 10
EN: 24
RU: 18
AI status
Completed
Completed
100%
Causes
- Faulty or powered-off Traffic Master Module
- Open or shorted CAN/LIN data bus wiring or connectors
- Blown fuse or missing power/ignition feed to the module
- Poor or open ground(s)
- Network termination fault (open or shorted termination resistors)
- Software/firmware mismatch or corrupted module programming
Symptoms
- No traffic data or navigation-related services available
- Warning message about module or communication fault on cluster or infotainment
- Other modules reporting network communication errors
- Intermittent loss of related features or sporadic behavior
- DTC stored/active and inability to communicate with TMM using a scan tool
What to check
- Read all network-related DTCs with a capable scan tool and note status (current/historic)
- Verify battery voltage and battery condition
- Check fuses and power feeds for the Traffic Master Module (ignition-switched and constant)
- Verify module ground(s) for continuity to chassis
- Attempt to communicate with the TMM using OEM scan tool; note response and bus errors
- Visually inspect TMM connector and wiring for corrosion, damage, or water intrusion
Signal parameters
- CAN bus frames/messages: TMM should transmit and receive specific CAN IDs (use OEM network list)
- CAN High/CAN Low idle voltages ~2.5 V each (verify nominal voltages with key ON)
- Bus differential voltage when active ~1.0–3.0 V (dependent on network load)
- Bus termination resistance expected within nominal range (refer to OEM, typically low tens to ~120 ohms across CAN_H and CAN_L with key OFF)
- Power voltage at module 12 V (battery) and switched ignition feed present when required
- Module ground resistance very low (
Diagnostic algorithm
- Retrieve freeze frame and all related DTCs. Confirm B2201 is current and note any U-/B-codes.
- Verify battery voltage >=12 V and good battery connections. Some modules enter sleep with low voltage.
- Check fuses and relays feeding the Traffic Master Module; restore any blown fuses and retest communication.
- With ignition ON, attempt communication with an OEM-level scan tool. Observe bus errors and whether the module responds.
- Inspect the TMM connector for bent pins, corrosion, or moisture. Back-probe power and ground pins: verify 12 V (or specified feed) and good chassis ground.
- Check CAN/LIN wiring continuity from the TMM connector to nearest network gateway or junction module. Repair any opens, shorts to ground or battery, and loose splice connections.
- Measure CAN_H/CAN_L voltages with key ON and compare to expected ranges. Use an oscilloscope to confirm valid CAN frames if available.
- Verify termination resistance across CAN_H and CAN_L with key OFF. Investigate if resistance is out of expected range (open or shorted termination).
- Disconnect any aftermarket devices on the bus. Clear codes and re-scan to see if code returns.
- Reflash or update the Traffic Master Module software if a manufacturer service bulletin or update exists and scan tool indicates software mismatch.
- If wiring, power, and grounds are good and the module still does not communicate, consider module replacement per OEM procedures. Program/configure replacement module before final test.
- After repairs, clear DTCs and verify normal communication and operation over a road test or extended key cycles as specified.
Likely causes
- Blown fuse or lost ignition power to the Traffic Master Module
- Damaged connector or corrosion at the TMM harness
- CAN bus short or open near the module or wiring harness damage
- Defective Traffic Master Module
- Vehicle module configuration or software issue after service or battery disconnect
Fault status
Status
No Communication With Traffic Master Module (lost communication on vehicle network)
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
Code
B2201
Other
B — Body
No Communication With Traffic MasterModule
Views:
UK: 24
EN: 35
RU: 27
AI status
Completed
Completed
100%
Causes
- Faulty or powered-off Traffic Master Module
- Open or shorted CAN/LIN data bus wiring or connectors
- Blown fuse or missing power/ignition feed to the module
- Poor or open ground(s)
- Network termination fault (open or shorted termination resistors)
- Software/firmware mismatch or corrupted module programming
Symptoms
- No traffic data or navigation-related services available
- Warning message about module or communication fault on cluster or infotainment
- Other modules reporting network communication errors
- Intermittent loss of related features or sporadic behavior
- DTC stored/active and inability to communicate with TMM using a scan tool
What to check
- Read all network-related DTCs with a capable scan tool and note status (current/historic)
- Verify battery voltage and battery condition
- Check fuses and power feeds for the Traffic Master Module (ignition-switched and constant)
- Verify module ground(s) for continuity to chassis
- Attempt to communicate with the TMM using OEM scan tool; note response and bus errors
- Visually inspect TMM connector and wiring for corrosion, damage, or water intrusion
Signal parameters
- CAN bus frames/messages: TMM should transmit and receive specific CAN IDs (use OEM network list)
- CAN High/CAN Low idle voltages ~2.5 V each (verify nominal voltages with key ON)
- Bus differential voltage when active ~1.0–3.0 V (dependent on network load)
- Bus termination resistance expected within nominal range (refer to OEM, typically low tens to ~120 ohms across CAN_H and CAN_L with key OFF)
- Power voltage at module 12 V (battery) and switched ignition feed present when required
- Module ground resistance very low (
Diagnostic algorithm
- Retrieve freeze frame and all related DTCs. Confirm B2201 is current and note any U-/B-codes.
- Verify battery voltage >=12 V and good battery connections. Some modules enter sleep with low voltage.
- Check fuses and relays feeding the Traffic Master Module; restore any blown fuses and retest communication.
- With ignition ON, attempt communication with an OEM-level scan tool. Observe bus errors and whether the module responds.
- Inspect the TMM connector for bent pins, corrosion, or moisture. Back-probe power and ground pins: verify 12 V (or specified feed) and good chassis ground.
- Check CAN/LIN wiring continuity from the TMM connector to nearest network gateway or junction module. Repair any opens, shorts to ground or battery, and loose splice connections.
- Measure CAN_H/CAN_L voltages with key ON and compare to expected ranges. Use an oscilloscope to confirm valid CAN frames if available.
- Verify termination resistance across CAN_H and CAN_L with key OFF. Investigate if resistance is out of expected range (open or shorted termination).
- Disconnect any aftermarket devices on the bus. Clear codes and re-scan to see if code returns.
- Reflash or update the Traffic Master Module software if a manufacturer service bulletin or update exists and scan tool indicates software mismatch.
- If wiring, power, and grounds are good and the module still does not communicate, consider module replacement per OEM procedures. Program/configure replacement module before final test.
- After repairs, clear DTCs and verify normal communication and operation over a road test or extended key cycles as specified.
Likely causes
- Blown fuse or lost ignition power to the Traffic Master Module
- Damaged connector or corrosion at the TMM harness
- CAN bus short or open near the module or wiring harness damage
- Defective Traffic Master Module
- Vehicle module configuration or software issue after service or battery disconnect
Fault status
Status
No Communication With Traffic Master Module (lost communication on vehicle network)
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Workshop Manuals
Available brands with manuals
2
AUDI 11
6-speed manual gearbox 0B1, front-wheel drive — Workshop Manual (Edition 05.2014)
Workshop Manual199,00 UAH
Audi A3 (1997) – 1.6L 4-cylinder (2‑valve) Engine Mechanical Components Service Manual (AEH, AKL, APF) – Edition 07.2002
Workshop Manual199,00 UAH
AUDI A3 (2004) Workshop Manual — 2.0L FSI Turbo (4‑cyl, 4‑valve) Engine, Mechanics — Edition 03.2017
Workshop Manual199,00 UAH
Audi A3 2004 — Electrical System (Workshop Manual, Edition 02.2018)
Workshop Manual199,00 UAH
Audi A4 / A4 Cabriolet – 4.2 l V8 (5‑valve, timing chains) – Workshop Manual (Mechanics) – Edition 04.2007
Workshop Manual199,00 UAH
Audi A4 / A4 Cabriolet — Auxiliary Heater Workshop Manual (Edition 08.2004)
Workshop Manual199,00 UAH
Audi A4 / A4 Cabriolet (1.8T 4‑cyl turbo) — Motronic Injection & Ignition System Service Manual (Edition 01.2015)
Workshop Manual199,00 UAH
Audi A8 (2003) — Electrical System Workshop Manual (Edition 08.2014)
Workshop Manual199,00 UAH
Audi Q4 e-tron (Type F4) - Self-study Programme SSP 685
Workshop Manual199,00 UAH
Audi Q8 (2018) — Electrical System Workshop Manual (Edition 05.2019)
Workshop Manual199,00 UAH
Audi Servicing Manual — 7‑Speed Dual Clutch Transmission 0CJ / 0CL / 0CK / 0DN / 0DP / 0HL (Edition 05.2018)
Workshop Manual199,00 UAH
LAND ROVER 3
Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
Workshop Manual199,00 UAH
Land Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)
Workshop Manual199,00 UAH
Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)
Workshop Manual199,00 UAH
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
