CL TYPE S V6-3.2L SOHC (2001)
Vehicle Speed Sensor: Testing and Inspection
Vehicle Speed Signal Circuit Troubleshooting
Before testing:
-
Check to see if diagnostic trouble code P0720 (9) is indicated. If it is, troubleshoot the DTC.
-
Inspect the No. 9 (7.5 A) fuse in the driver's under-dash fuse/relay box.
-
Confirm that there is continuity between the gauge assembly 14P connector C9 and C10 terminals and body ground (G501).
1. Raise the vehicle, and make sure it is securely supported.
2. Disconnect the 14P connector C from the gauge assembly.
3. Connect the C2 terminal to the positive probe of a voltmeter, and connect the negative probe to body ground. To prevent damage to the gauge
assembly, lay the gauge assembly on a shop rag.
4. Put the vehicle in neutral with the ignition switch ON (II).
5. Slowly rotate (over 3 mph (2 km/h)) one wheel with the other wheel blocked.
Does voltage pulse from 0 to approx. 5 V or more?
YES - Replace the speedometer or the printed circuit board panel.
NO - Turn the ignition switch OFF, and go to step 6.
6. Connect the No. 9 terminal of the PCM connector A (32P) to the positive probe of a voltmeter, and connect the negative probe to body ground.
(A/T)
7. Connect the No. 16 terminal of the ECM connector E (31P) to the positive probe of a voltmeter, and connect the negative probe to body ground.
(M/T)
8. Put the vehicle in neutral with the ignition switch ON (II).
