[simmo777]

Looking for advice around diagnosing and sorting out the "service esp warning" on my 2012 SWB Grand Vitara.

I have the following codes on scan tool;
C1028 - Master Cyclinder Pressure Sensor Circuit Failure
C1016 - Brake Light Switch Failure
C1061 - Pump Motor and / or otor Driver Circuit Failure
C1079 - Steering Angle Sensor Calibration Defect
C1075 - Steering Angel Sensor Calibration Incomplete

Thought maybe low voltage was the issue as per forums but the battery was originally 12.7v car off and shy of 14v running with lights on. Since removing and charging overnight (car is driven once a week) sitting happily 13.1v with the car off and 14.4v on as well as clearing codes and only the service ESP has returned to dash.

I've heard the abs unit can be prone to failure and fuses breaking but they look okay. Will be completing a flush of the brake fluid and reset again before talking with Suzuki auto spares Brisbane to take a look. Anyone had luck or advice for sorting out this error or can provide more advice? Done a bit of a search and most seem to say batteries or the ABS unit itself.

https://imgur.com/a/mYouGbZ
https://imgur.com/a/M073Kax

[simmo777]

Update - Since brake fluid flush we are left with the code C1061. All sensors cleaned and battery tested - ESP stays cleared upon start but comes back over 10kmph - Off to Suzuki auto spares I think to have the suzuki guru's take a look. Looks like an ABS unit rebuild is on the horizon.

[mark.k]

Hi Simmo777,

How was this issue resolved?

I am encountering a similar issue.

What unit are you using to reduce the errors?

Thanks