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Home >> Jeep >> 1998 >> Cherokee Classic, 2.5 P >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Engine Performance >> Self-Diagnostic Tests >> Test TC-35B: No Vehicle Speed Sensor Signal

Test TC-35B: No Vehicle Speed Sensor Signal

NOTE: This test applies to AB body only. Perform TEST TC-35A: NO VEHICLE SPEED SENSOR SIGNAL  before proceeding. For connector terminal identification, see CONNECTOR IDENTIFICATION . For component location and wiring diagram, see WIRING DIAGRAMS article.
WARNING: Keep hands and feet clear of rotating wheels.
  1. This DTC is intermittent. Raise and support vehicle so drive wheels are free to rotate. Start engine. Using scan tool, read Vehicle Speed Sensor (VSS) signal. Place transmission in any forward gear. If scan tool does not display any MPH, perform TEST TC-35A: NO VEHICLE SPEED SENSOR SIGNAL . If scan tool displays zero MPH, go to next step.
  2. Condition required to set DTC is not present at this time. NO VEHICLE SPEED SENSOR SIGNAL DTC sets if no VSS signal is received at Powertrain Control Module (PCM) for more than 15 seconds. Possible causes are: open or shorted VSS wiring, defective connections, defective speedometer drive gear, defective VSS or PCM. Go to next step.
  3. Inspect all related wiring and connectors. Repair wiring and connectors as necessary and perform TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES . If wiring and connectors are okay, see INACTIVE DTC CONDITION . VSS tests okay at this time. Perform TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES .
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