DTC B2202: Meter Communication Circuit

Symptom: Display "METER COMM CIRC [B2202]" at the result of self-diagnosis for unified meter and A/C amp.

CHECK CONNECTOR
Check combination meter, unified meter and A/C amp. and terminals (combination meter side, unified meter and A/C amp. side, and harness side) for looseness or bent terminals.

OK or NG

OK : GO TO 2.

NG : Repair terminal or connector.
CHECK METER/GAUGES VISUALLY
Check the pointer on the meter/gauge fluctuate at the engine start.

Is the fluctuation acceptable?

YES : GO TO 3.

NO : GO TO 6.
CHECK CONTINUITY COMMUNICATION CIRCUIT (TX: COMBINATION METER)
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector M20 terminal 13 and unified meter and A/C amp. harness connector M55 terminal 19.
  13 - 19 : Continuity should exist.
4. Check continuity between combination meter harness connector M20 terminal 13 and ground.
  13 - Ground : Continuity should not exist.
OK or NG

OK : GO TO 4.

NG : Repair harness or connector.

Fig 1: Identifying Continuity Between Combination Meter Harness Connector M20 Terminal 13 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK VOLTAGE OF UNIFIED METER AND A/C AMP.
1. Connect unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between combination meter harness connector M20 terminal 13 and ground.
  13 - Ground : Approx. 5 V
OK or NG

OK : GO TO 5.

NG : Replace unified meter and A/C amp. Refer to "REMOVAL AND INSTALLATION OF UNIFIED METER AND A/C AMP. "

Fig 2: Identifying Voltage Between Combination Meter Harness Connector M20 Terminal 13 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK VOLTAGE SIGNAL OF COMBINATION METER
1. Turn ignition switch OFF.
2. Connect combination meter connector.
3. Turn ignition switch ON.
4. Check voltage signal between combination meter harness connector M20 terminal 13 and ground.
  13 - Ground:
  
  Fig 3: Identifying Voltage Waveform Pattern
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Connecting Combination Meter Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK : Replace unified meter and A/C amp. Refer to "REMOVAL AND INSTALLATION OF UNIFIED METER AND A/C AMP. ".

NG : Replace combination meter.
CHECK CONTINUITY COMMUNICATION CIRCUIT (RX: COMBINATION METER)
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector M20 terminal 14 and unified meter and A/C amp. harness connector M55 terminal 9.
  14 - 9 : Continuity should exist.
4. Check continuity between combination meter harness connector M20 terminal 14 and ground.
  14 - Ground : Continuity should not exist.
  
  Fig 5: Identifying Continuity Between Combination Meter Harness Connector M20 Terminal 14 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK : GO TO 7.

NG : Repair harness or connector.
CHECK VOLTAGE OF COMBINATION METER
1. Connect combination meter connector.
2. Turn ignition switch ON.
3. Check voltage between unified meter and A/C amp. harness connector M55 terminal 9 and ground.
  9 - Ground : Approx. 5 V
OK or NG

OK : GO TO 8.

NG : Replace combination meter.

Fig 6: Identifying Voltage Between Unified Meter And A/C Amp
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK VOLTAGE SIGNAL OF UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Connect unified meter and A/C amp. connector.
3. Turn ignition switch ON.
4. Check voltage signal between combination meter harness connector M20 terminal 14 and ground.
  14 - Ground:
  
  Fig 7: Identifying Voltage Waveform Pattern
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 8: Identifying Combination Meter Harness Connector M20 Terminal 14 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK : Replace combination meter.

NG : Replace unified meter and A/C amp. Refer to "REMOVAL AND INSTALLATION OF UNIFIED METER AND A/C AMP. ".