P0138 on the 2014 Acura MDX
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| DLR MSG - RFP - | 2018-06-18. Service bulletin. Dealer message - American Honda (AHM) is investigating certain 2014 MDXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0158 (Front Secondary Heated Oxygen Sensor Circuit High Voltage) and/or P0138 (Rear Secondary Heated Oxygen Sensor Circuit High Voltage) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind. |
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| DLR MSG - RFP - | 2018-03-05. Service bulletin. Dealer message - American Honda (AHM) is investigating certain 2014 MDXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0158 (Front Secondary Heated Oxygen Sensor Circuit High Voltage) and/or P0138 (Rear Secondary Heated Oxygen Sensor Circuit High Voltage) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind. |
| DLR MSG - RFP - | 2018-03-05. Service bulletin. Dealer message - American Honda (AHM) is investigating certain 2014 MDXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0158 (Front Secondary Heated Oxygen Sensor Circuit High Voltage) and/or P0138 (Rear Secondary Heated Oxygen Sensor Circuit High Voltage) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind. |
| ENG REQ - BER140 | 2018-03-05. Service bulletin. Engineering request for investigation - American Honda (AHM) is investigating certain 2014 MDXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0158 (Front Secondary Heated Oxygen Sensor Circuit High Voltage) and/or P0138 (Rear Secondary Heated Oxygen Sensor Circuit High Voltage) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind. |
| DLR MSG - RFP - | 2018-03-05. Service bulletin. Dealer message - American Honda (AHM) is investigating certain 2014 MDXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0158 (Front Secondary Heated Oxygen Sensor Circuit High Voltage) and/or P0138 (Rear Secondary Heated Oxygen Sensor Circuit High Voltage) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind. |
| DLR MSG - RFP - | 2018-03-05. Service bulletin. Dealer message - American Honda (AHM) is investigating certain 2014 MDXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0158 (Front Secondary Heated Oxygen Sensor Circuit High Voltage) and/or P0138 (Rear Secondary Heated Oxygen Sensor Circuit High Voltage) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind. |
| IN-142702 | 2014-04-11. Service bulletin. ACURA: AN INVESTIGATION ON DIAGNOSTIC TROUBLE CODES (DTC) P0158, P0138 (FRONT AND REAR SECONDARY HEATED OXYGEN SENSOR CIRCUIT HIGH VOLTAGE) SHOWING WHEN MALFUNCTION INDICATOR LIGHT (MIL) IS ON. *PE |
| IN-1-29-14 | 2014-02-27. Service bulletin. HONDA: THE MALFUNCTION INDICATOR LAMP IS ILLUMINATED. STORED DTC P0158 (FRONT SECONDARY HEATED OXYGEN SENSOR CIRCUIT HIGH VOLTAGE) MAY BE PAIRED WITH P0138 (REAR SECONDARY HEATED OXYGEN SENSOR CIRCUIT HIGH VOLTAGE). AHM IS ATTEMPTING TO COLLECT SPECIFIC PARTS FROM THE VEHICLE BEFORE ANY EFFORT TO REPAIR IT HAS BEEN MADE. *JS |
8 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.