P0030, P0032 - Oxygen Sensor Heater Circuit

P0030, P0032, Oxygen Sensor Heater Circuit - Bank 1 Sensor 1 - Fault Code - CM8; CR8; CS8; DP5; DR5; DS5; HG8; HJ8; HK8; HL8; LG1; LGX; LL1; PB1; PJ1; PJZ; PM1; PR1; PRC; PS1; PSC; PX1; PXC; PY1; PYC; YE1; YF1; YM1; YN1

Fault Code

Possible cause

Action

P0030

Oxygen sensor heater open circuit or short to ground - bank 1 sensor 1

View and note 'freeze-frame' data if available.

View and note 'sensor' data.

Make sure sensor connector is secure.

Disconnect engine ECM and proceed to pinpoint test 1:

P0032

Oxygen sensor heater short circuit to battery positive - bank 1 sensor 1

Subheading - Pinpoint Test

Pinpoint Tests

P0030, P0032, Oxygen Sensor Heater Circuit - Bank 1 Sensor 1 - Pinpoint Test - PB1, PJ1, L*1, PV1

Test

Result

Action

1

Check cable and terminal integrity:

- Engine ECM pin A08

- EMS relay pin 5

OK

Disconnect oxygen sensors and proceed to test 2

Faulty

Rectify fault, proceed to test 5

2

Check cable for short circuit:

- Engine ECM pin A08 to ground

OK

Proceed to test 3

Short circuit

Locate and rectify wiring fault, proceed to test 4

3

Check cable continuity:

- Engine ECM pin A08 to oxygen sensor pin 4

- Engine ECM pin C22 to oxygen sensor pin 3

OK

Proceed to test 4

Open circuit

Locate and rectify wiring fault, proceed to test 4

4

Check cable for short circuit:

- Engine ECM pin C22 to Engine ECM pin A08

OK

Renew oxygen sensor, proceed to test 5

Short circuit

Locate and rectify wiring fault, proceed to test 5

5

Reconnect harness, clear fault code and run engine.

Check adaption status.

OK

Action complete - quit test

Fault still present

Contact Triumph service

Subheading - Circuit Diagram

Circuit Diagram

P0030, P0032, P0053, P0134, P0171, P0172 Oxygen Sensor Heater Circuit - Bank 1 Sensor 1 - Circuit Diagram_LG1; LGX; LL1

Oxygen Sensor PPT (Oxygen sensor LG1)
  1. Oxygen Sensor

  2. Engine Management System Relay

  3. Engine ECM Connector A

  4. Engine ECM Connector C