FixVault

System Tests: Notes

CAUTION: When battery is disconnected or modules are replaced, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
SYMPTOM CHART

Symptom Perform Test
No Communication With Speed Control Servo A 
Unable To Enter Self-Test B 
Battery Voltage Low (DTC B1318) C 
Throttle Position Did Not Return To Idle After Self-Test (DTC C1109) D 
Speed Control Switch Stuck For 2 Minutes Or Longer (DTC C1126) E 
Deactivator Switch Circuit Failure (DTC C1127) F 
Speed Control Servo Cable Slack Failure (DTC C1179) G 
Speed Control Is Inoperative - No Diagnostic Trouble Codes H 
Set Speed Fluctuates I 
Coast Switch Is Inoperative J 
Set/Accel Switch Is Inoperative K 
Resume Switch Is Inoperative L 
Off Switch Is Inoperative M