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Transmission Control Systems

TROUBLE CODE 33
VEHICLE SPEED SENSOR 2

Diagnosis
Input signal circuit of Vehicle Speed Sensor 2 is open or shorted.

Trouble Symptom
Improper shift points.





1. Measure signal voltage input of Transmission Control Module (TCM).
a. Turn Ignition Switch "ON" (with Engine "OFF").
b. Move select lever to "N" and slowly move vehicle by pushing it.





c. While vehicle is slowly moving, measure signal voltage input of TCM.

Connector & Terminal / Specified Voltage:
(B52) No. 5 - No. 14 / Repetition of 1 Volt (maximum) - 4 Volts (minimum)


Select Monitor Function Mode
- Mode: FO4
- Condition:
Simulated Driving.
- Specified Data:
VSP2 O4
(vehicle speed) miles/h
- Mode FO5:
"km/h" indication.

2. Check harness and connectors between TCM and Vehicle Speed Sensor 2.
a. Disconnect connector from TCM.
b. Disconnect connector from rear of Combination Meter.





c. Measure resistance between TCM connector and Combination Meter cable connector.

Connector & Terminal / Specified Resistance:
(B52) No. 5 - (i18) No. 8 / 0 Ohms.
(B52) No. 5 - Body / 1 M-Ohm, minimum


3. Check Vehicle Speed Sensor 2.
a. Remove Combination Meter from instrument panel.
b. Rotate Combination Meter with a screwdriver inserted into rear of Combination Meter at cable location.





c. Check that voltage across Combination Meter cable connector terminals changes (from 0 to 5) Volts four times per rotation.

Connector & Terminal / Specified Resistance:
(i18) No. 8 - (i18) No. 15 / 0 <--> 5 Volts.