MIL ON - DTC P0500 (VSS)

BULLETIN NUMBER:
NTB99-013

CLASSIFICATION:
EC99-001

DATE:
April 1, 1999

TITLE:
1998-99 MY FRONTIER TRUCK M/T MIL "ON" P0500

SERVICE INFORMATION

If an applied 1998-99 Frontier Truck (manual transmission, KA24DE Engine only) shows the following conditions:

1. MIL "ON" with DTC P0500 stored,

2. CONSULT freeze frame data indicates an engine speed value of 2000 rpm or less,

3. No abnormal speedometer indication during test drive, then use this bulletin to repair the incident

This incident may be due to a clutch slip condition for more than 10 seconds with a vehicle forward speed of less than 3 mph. This situation could occur during hill holding using clutch slip.

Correct this incident by installing the ECM listed in the Parts Information using the following service procedure.

SERVICE PROCEDURE

1. Verify DTC stored is P0500





2. Verify the CONSULT freeze frame data stored has an engine speed value of 2000 rpm or less (see Figure 1).

3. Conduct test drive to confirm there is no abnormal speedometer indication:

a) Connect CONSULT and select Start, Engine, Data Monitor and Main Signals

b) Test drive vehicle and ensure the speedometer and the vehicle speed sensor value displayed in Data Monitor provide consistent speed indications with no drop-outs or spikes.

Note: A 2-3 mph (3-5 kph) difference between the CONSULT display and the speedometer is normal.

4. a) If the speedometer and speed sensor values are 0K, proceed to # 5.

b) If the speedometer and speed sensor data are erratic, this bulletin does not apply. Refer to service manual for Diagnosis information.

5. Check the existing ECM part number in the vehicle that is listed either on the CONSULT freeze frame data or checked by CONSULT ECM Part Number function (see Figure 1).





6. If existing Part Number is one of those listed in Table 1, install the appropriate P/N listed in Parts Information.





PARTS INFORMATION





CLAIMS INFORMATION