C1090

DTC C1090 / C1091 / C1094

DTC Detecting Condition and Trouble Area






DTC Troubleshooting

1.
Was "ESP(R) System Check" performed?
YES -
Go to Step 2.
NO -
Go to ESP System Check ESP(R) System Check.

2. DTC check

Perform DTC Check DTC Check.

Is there DTC(s) other than C1090, C1091 or C1094?
YES -
Go to applicable DTC troubleshooting.
NO -
Go to Step 3.

3. DTC check for ECM

Check DTC for ECM.

Is DTC U0073 or U0121 detected?
YES -
Go to Powertrain Management DTC U0073 or Powertrain Management DTC U0121.
NO -
Substitute a known-good ESP(R) control module and recheck DTC. ESP Hydraulic Unit / Control Module Assembly Removal and Installation