Diagnostic Test
- 1) ACTIVE DTC
Ignition on, engine not running.
With a scan tool, read ACC DTCs.
Is the DTC active at this time?
Yes
Refer to ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS for diagnostic procedures and for further possible causes.
No
- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particulate attention the CAN circuits.
- Perform ACC MODULE VERIFICATION TEST . See STANDARD PROCEDURE .