Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Rear Axle Lock Inoperative

Symptom:
REAR AXLE LOCK INOPERATIVE

Test 1-3:




Test 4-6:





POSSIBLE CAUSES
- CHECKING OPERATION
- INSTRUMENT CLUSTER NOT PROPERLY CONFIGURED
- VSS, PCM, OR TRANSFER CASE DTC'S PRESENT
- OPEN FUSE IN PDC
- AXLE LOCK SWITCH GROUND CIRCUIT OPEN
- FUSED B(+) CIRCUIT OPEN TO AXLE LOCK SWITCH
- AXLE LOCK SWITCH FAILURE