Comanche 2WD L4-150 2.5L VIN E TBI (1989)
Speedometer Head: Testing and Inspection
1.
Check for continuity in wire between speed sensor and cluster connector pin A5.
2.
With ignition switch in On position, check for battery voltage across pin A8 (B+) and pin B2 (ground).
Diagnosis of the vehicle speed sensor and circuit, the Chrysler Collision Detection (CCD) data bus, and/or the Powertrain Control Module (PCM)
should be performed with a DRB scan tool as described in the proper Diagnostic Procedures. For diagnosis of the speedometer, refer to Powertrain
Management / Computers and Control Systems / Vehicle Speed Sensor.
