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DTC P0032 [AJ] (VIN: JM0 LW10J300 301406-, JMZ LW69J7*# 307683-, JM8 LW28J**# 301514-, JM8 LW28A**# 301514- (Assumed))

BME010200001W02

DTC P0032 | HO2S heater (Front, RH) circuit high
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DETECTION CONDITION | • The PCM monitors the HO2S heater (Front, RH) control signal at PCM terminal 83. If the PCM turns the front heater (RH) on but front heater (RH) circuit has high voltage, the PCM determines that the HO2S heater (Front, RH) circuit has malfunction.

  Note

  • The HO2S heater (Front, RH) is controlled by a duty signal.

Diagnostic support note
• This is an intermittent monitor (HO2S heater).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.
POSSIBLE CAUSE | • Short to power circuit between HO2S (Front, RH) terminal D and PCM terminal 83 • Shorts HO2S (Front, RH) or PCM terminal • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN RECORDED • Have FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS (HO2S heater related) been recorded? | Yes | Go to the next step.
No | Record FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS on repair order, then go to the next step.
2 | VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Check for related Service Information availability. • Is any related Service Information available? | Yes | Perform repair or diagnosis according to available Service Information. • If vehicle is not repaired, go to next step.
No | Go to next step.
3 | INSPECT HO2S (FRONT, RH) TERMINALS • Turn the ignition switch off. • Disconnect HO2S (Front, RH) connector. • Check for bent terminals. • Is there any malfunction? | Yes | Repair or replace terminal, then go to Step 7.
No | Go to next step.
4 | INSPECT HO2S HEATER (FRONT, RH) • Inspect HO2S heater (front, RH). (See HEATED OXYGEN SENSOR (HO2S) INSPECTION [AJ] (VIN: JM0 LW10J300 301406-, JMZ LW69J7*# 307683-, JM8 LW28J**# 301514-, JM8 LW28A**# 301514- (Assumed)).) • Is HO2S heater (front, RH) normal? | Yes | Go to next step.
No | Replace the HO2S (Front, RH), then go to Step 7.
5 | INSPECT PCM TERMINAL • Disconnect PCM connector. • Check for bent terminals. • Are there any malfunctions? | Yes | Repair terminal, then go to Step 7.
No | Go to next step.
6 | INSPECT HO2S (FRONT, RH) HEATER CONTROL CIRCUIT FOR SHORT TO POWER CIRCUIT • Turn the ignition switch to ON (Engine OFF). • Measure voltage between HO2S (Front, RH) terminal D (harness-side) and body ground. • Is there voltage B+? | Yes | Repair or replace harness for shot to power circuit, then go to next step.
No | Go to next step.
7 | VERIFY TROUBLESHOOTING OF DTC P0032 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear DTC from PCM memory using WDS or equivalent. • Start engine and warm it up completely. • Is PENDING CODE of same DTC present? | Yes | Replace PCM, then go to next step.
No | Go to next step.
8 | VERIFY AFTER REPAIR PROCEDURE • Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE [AJ].) • Is there any DTC present? | Yes | Go to applicable DTC inspection. (See DTC TABLE [AJ] (VIN: JM0 LW10J300 301406-, JMZ LW69J7*# 307683-, JM8 LW28J**# 301514-, JM8 LW28A**# 301514- (Assumed)).)
No | Troubleshooting completed.