Continuous Monitor (Wiggle) Test

The Self-Test Output (STO) will be activated each time a fault is detected. If the STO is activated long enough during the wiggle tests a service code will be stored. A fault is indicated by a 10.5 volt or greater deflection on VOM. STAR tester LED turns off.

KEY ON/ENGINE OFF Test: With SELF-TEST deactivated, turn ignition on to enter into wiggle mode.
KEY ON/ENGINE RUNNING Test: Activate SELF-TEST and perform ENGINE RUNNING SELF-TEST. After service code output has finished, do not turn engine off or deactivate SELF-TEST. About 2 minutes after code 11 has been displayed, wiggle mode will start. The system will remain in wiggle mode until SELF -TEST is deactivated or engine is turned off.

NOTE: An alternate method of entering CONTINUOUS MONITOR (WIGGLE) TEST with engine running is to start ENGINE RUNNING SELF- TEST, exit, and re-enter ENGINE RUNNING SELF-TEST without turning engine off.

Observe VOM while moving, wiggling, and tapping the system harness (in short sections), connectors, and sensors. If an intermittent condition is created, the monitor will indicate this by storing a service code. Carefully inspect harness and associated connectors of affected circuits.
If an intermittent condition is not created, carefully disconnect sensor from harness. Remove terminals from connector and visually inspect terminals at both ends for corrosion, bad crimps, improperly seated terminals, etc.
Reconnect harness after inspection. Disconnect ECA from harness as carefully as possible. Remove and inspect terminals associated with sensor being checked.
If an intermittent condition cannot be created, reconnect connector and erase the CONTINUOUS SELF-TEST service codes. To erase service codes, activate KEY ON/ENGINE OFF SELF-TEST.
Remove jumper from Self-Test Input (STI) terminal as soon as first service code appears. Repeat SELF-TEST with jumper to verify that service codes have been erased. QUICK TEST is complete.