DTC 69

Diagnostic Chart:

Wiring Diagram:

The line actuator is energized (low line pressure) when Circuit 1530 is grounded at PCM terminal J3F1. When the PCM grounds the circuit the voltage is monitored to check for proper circuit conditions.

INFORMATION FLAG PARAMETERS

Info. Flag 69 is set when the PCM has detected the following conditions after the line actuator circuit has been switched on electrically at the PCM twice per ignition cycle.

^ Voltage from the actuator to PCM terminal J3F1 (Circuit 1530) is greater than 2 - 2.5 volts.

^ Low resistance actuator or 12 volts shorted to Circuit 1530.



TEST DESCRIPTION

Numbered steps below refer to numbered steps on chart.


1. This step verifies problem is still present.


2. If actuator is shorted internally and resistance is one ohm or less than the average resistance reading of the other actuators, the actuator or connector plate is shorted.

3. If Circuit 1530 is shorted to voltage Info. Flag 69 will set. This step checks Circuit 1530 for a short to voltage.

4. This step will indicate if the actuator or a connector plate is faulty.

DIAGNOSTIC AIDS

When attempting to diagnose an intermittent problem use the Scan tool * to review supplemental diagnostic information. The supplemental data can be used to duplicate a problem.

* Select MALF History from Scan tool TCM menu.


Check the tightness of the female terminal grip with a spare male terminal.


IMPORTANT: When the PCM detects a fault in the circuit (open, ground, short), the PCM will open the circuit internally to protect the circuit.