A/T - DTCs P0716 And P0717 Procedure Revised

File in Section: 07 - Transmission/Transaxle

Bulletin No.: 00-07-30-015

Date: August, 2000

Subject:
Revised DTC Tables for P0716 and P0717 (Section 7 Automatic Transmission)

Models:
1998-2000 Chevrolet and GMC C/K Models and G Van
with Hydra-Matic 4L80-E Automatic Transmission (RPO MT1)

This bulletin is being issued to revise the tables for DTC's P0716 and P0717 in the Automatic Transmission 4L80-E Section of the Service Manual. The new tables improve the diagnosis of a short to ground on circuit 1230. Make note of the changes in your Service Manual.

DTC P0716 Input Speed Sensor Circuit Intermittent (1997 C/K Truck)

Test Description








The numbers below refer to the step numbers on the diagnostic table.

2. This step tests for proper operation to the A/T ISS Sensor.

5. This step tests for proper A/T ISS circuit operation up to the VCM connections. Remove the fuel pump relay in order to eliminate a flooding condition during this step.

DTC P0717 Input Speed Sensor Circuit Low Input (1997 C/K Truck)

Test Description








The numbers below refer to the step numbers on the diagnostic table.

2. This step tests for proper operation to the A/T ISS Sensor.

5. This step tests for proper A/T ISS circuit operation up to the VCM connections. Remove the fuel pump relay in order to eliminate a flooding condition during this step.

DTC P0716 Input Speed Sensor Circuit Intermittent (1997 G Van)

Test Description








The numbers below refer to the step numbers on the diagnostic table.

2. This step tests for proper operation to the A/T ISS Sensor.

5. This step tests for proper A/T ISS circuit operation up to the VCM connections. Remove the fuel pump relay in order to eliminate a flooding condition during this step.

DTC PO717 Input Speed Sensor Circuit Low Input (1997 G Van)

Test Description








The numbers below refer to the step numbers on the diagnostic table.

2. This step tests for proper operation to the A/T ISS Sensor.

5. This step tests for proper A/C ISS circuit operation up to the VCM connections. Remove the fuel pump relay in order to eliminate a flooding condition during this step.

DTC P0716 Input Speed Sensor Circuit Intermittent (1998-99 C/K Truck)

Test Description








The numbers below refer to the step numbers on the diagnostic table.

2. This step tests for proper operation to the A/T ISS Sensor.

5. This step tests for proper A/T ISS circuit operation up to the VCM connections.Remove the fuel pump relay in order to eliminate a flooding
condition during this step.

DTC P0717 Input Speed Sensor Circuit Low Input (1998-99 C/K Truck)

Test Description








The numbers below refer to the step numbers on the diagnostic table.

2. This step tests for proper operation to the A/T ISS Sensor.

5. This step tests for proper A/T ISS circuit operation up to the VCM connections Remove the fuel pump relay in order to eliminate a flooding
condition during this step.

DTC P0716 Input Speed Sensor Circuit Intermittent (1998-99 G Van, P32/42 Truck)

Test Description








The numbers below refer to the step numbers on the diagnostic table.

2. This step tests for proper operation to the A/T ISS Sensor.

5. This step tests for proper A/T ISS circuit operation up to the VCM connections. Remove the fuel pump relay in order to eliminate a flooding condition during this step.

DTC P0717 Input Speed Sensor Circuit Low Input (1998-99 G Van, P32/42)

Test Description








The numbers below refer to the step numbers on the diagnostic table.

2. This step tests for proper operation to the A/T ISS Sensor.

5. This step tests for proper A/T ISS circuit operation up to the VCM connections. Remove the fuel pump relay in order to eliminate a flooding
condition during this step.





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