Amarok V6 Check Engine Issues

[Darryl Brown]

I have a V6 Amarok with a recurring but intermittent check engine light.

I have scanned the error codes and get two different codes depending on which tool I use.

Using OBD11 I get an error code 0538 and under voltage issues with various exhaust gas temp sensors etc as well as a Central Electronics error of open circuit.

Using Carly I get an 021A message which seems to indicate an injector issue (but is probably triggered by the under voltage errors as per OBD11 above).

I have checked every fuse that I think may be at fault and found nothing. Checked the battery and charging rate and all seems fine in that area. I'm not sure where else to start looking.

Has anyone else had this issue and if so, what is the cause.

Thanks in advance if anyone can offer suggestions or solutions.

Darryl

[MIG]

If you can upload the error log from OBD11, it will help pinpoint the issue.

Use the app's email function, to send it to yourself, then you can upload it here.

00538 - Reference Voltage : Signal too small, is a general error that could be triggered on many modules.

[Darryl Brown]

If you can upload the error log from OBD11, it will help pinpoint the issue.

Use the app's email function, to send it to yourself, then you can upload it here.

00538 - Reference Voltage : Signal too small, is a general error that could be triggered on many modules.

Here are the two fault logs;

OBDeleven vehicle history log
Date: 2023-08-17 19:03:16


VIN: WV1ZZZ2HZHH014936
Car: VW Amarok V6
Year: 2017
Body type: UNKNOWN
Engine: DDXC kW ( hp) l
Mileage: 175190 km


---------------------------------------------------------------
01 Engine
System description: 3.0l V6 TDI
Software number: 2H6907311E
Software version: 0001
Hardware number: 059907309J
Hardware version: X21

Faults:
P220100 - NOx Sensor Circuit Range/Performance Bank 1 Sensor 1
static
Priority - 2
Malfunction frequency counter - 1
Unlearning counter - 255
km-Mileage - 175062 km
Engine speed - 1832.00 1/min
Normed load value - 39.6 %
Vehicle speed - 103 km/h
Coolant temperature - 95 °C
Intake air temperature - 22 °C
Ambient air pressure - 1010 mbar
Voltage terminal 30 - 12.760 V
Dynamic environmental data - 20962810261A85150D008C150E009515260287132F20001139 060816250B41
date - 2072-12-23 09:14:02

P220100 - NOx Sensor Circuit Range/Performance Bank 1 Sensor 1
static
Priority - 2
Malfunction frequency counter - 1
Unlearning counter - 255
km-Mileage - 175062 km
Engine speed - 1832.00 1/min
Normed load value - 39.6 %
Vehicle speed - 103 km/h
Coolant temperature - 95 °C
Intake air temperature - 22 °C
Ambient air pressure - 1010 mbar
Voltage terminal 30 - 12.760 V
Dynamic environmental data - 20962810261A85150D008C150E009515260287132F20001139 060816250B41
date - 2072-12-23 09:14:02

P103300 - NOX Sensor
Signal too low
static
Priority - 2
Malfunction frequency counter - 1
Unlearning counter - 255
km-Mileage - 175056 km
Engine speed - 1364.00 1/min
Normed load value - 60.0 %
Vehicle speed - 75 km/h
Coolant temperature - 91 °C
Intake air temperature - 19 °C
Ambient air pressure - 1010 mbar
Voltage terminal 30 - 13.060 V
Dynamic environmental data - 20962810261752150D0092150E008D152604D6132F1FFE1139 08E716250B3C
date - 2072-12-23 09:10:41



2nd Fault Log for code 0538

OBDeleven vehicle history log
Date: 2023-08-17 19:04:01


VIN: WV1ZZZ2HZHH014936
Car: VW Amarok V6
Year: 2017
Body type: UNKNOWN
Engine: DDXC kW ( hp) l
Mileage: 175190 km


---------------------------------------------------------------
09 Central Electrics
System description: BCM PQ25 MMI4
Software number: 7E0937089A
Software version: 0744
Hardware number: 7E0937089
Hardware version: H81

Faults:
00538 - Reference voltage
static
priority - 3
frequencyCounter - 2
drivingCycle - 77
km-Mileage - 175045 km


Not sure where to go from here to sort the issue. Any help would be appreciated.

Thanks

[Hillbilly]

Best shift this to the AMAROK forum This is the RULES forum as its labelled

[Lucas_R]

Thread moved to Amarok section. Sounds like you have a failed NOX sensor. Not entirely uncommon. Genuine VW NoX Sensor for Volkswagen Amarok 3.0 TDI Engines