DTC 69

DTC 69 Chart:

A/C Circuit:

Circuit Description:
When the PCM detects that A/C has been requested, the PCM will activate the A/C clutch relay. When the relay has been activated, voltage should be present at both the A/C compressor clutch and the A/C clutch status line terminal of the PCM.

If the PCM activates the A/C clutch relay but does not detect voltage present at the A/C status terminal for more than 10 seconds, a DTC 69 will set.

An open or short to ground at any point in CKT 59 will cause DTC 69 to set.

A DTC 69 fault will be stored in the PCM memory but will not turn "ON" the Malfunction Indicator Lamp (MIL) "Service Engine Soon."

DTC 69 Will Set When:
No voltage is detected by the PCM on CKT 59 after 20 seconds, when the PCM has commanded A/C "ON."

Action Taken (PCM will default to):
The MIL will not become illuminated, the A/C compressor will be disabled, the cooling fan will not be enabled unless A/C had been requested first and the vehicle speed is above 35 mph with a current DTC 69.

DTC 69 Will Clear When:
A current DTC 69 will clear when voltage is present on CKT 59, when the PCM has commanded the A/C "ON."

Test Description: Number(s) below refer to circled number(s) on the diagnostic chart.

1. Determines whether the A/C compressor clutch relay is faulty or poor connections at relay.

2. If the A/C compressor clutch operates properly and the Tech 1 shows A/C status "OFF," then an open exists between the PCM and the splice to the compressor.