Diagnostic Trouble Code Tests and Associated Procedures

4WD Control Module Diagnostic Trouble Code (DTC) Index

B1342-B1555 / C1728-C1729 / P1812-P1819:

P1849-P1891:

NOTE: Before carrying out the on-demand self-test, switch the mode selection switch into the suspect 4WD mode (4H or 4L) to verify the customer's concern.