Engine Control Module - Self Test Code 15 Set
Article No. 85-5-30QUICK TEST CODE 15 (4.9L) WITH AUTOMATIC TRANSMISSION
LIGHT TRUCK 1985 E, F-SERIES, AND BRONCO
CALIBRATIONS: 5-52H, 5-52M, 5-52F
WARNING: This modification is authorized only for the listed engines. Performing this modification on other engine calibrations is unauthorized and could create liability under applicable federal or local laws.
On initial production vehicles, a Service Code 15 will always occur in the Key-On/Engine-Off (KOEO) phase of the EEC-IV Self Test. No drive conditions are associated with this code.
If any of the above vehicles is returned with a drive concern and KOEO service codes other than Code 15 are exhibited, these service codes must be corrected. Ignore Code 15 if no drive symptoms are present.
Processors susceptible to this condition can be identified as follows:
Vehicle Processor Part No. Engine Cal.
F-Truck/Bronco E5DF-12A650-T2A 5-52H
E150/250 Series E5DF-12A650-U2A 5-52M
F150 Series E5DF-12A650-V2A 5-52F
A label attached to the processor will state, "This processor will always issue Self Test Service Code 15 during Key-On/Engine-Off test. Do not replace it with - out first troubleshooting EEC system".
NOTE: Not all initial production processors received warning labels.
Vehicle build dates: Jan. 14, 1985 through April 30, 1985.
If Service Code 15 occurs in the Continuous Memory phase of Self-Test, perform the action required by the Quick Test procedure (Step 3.0A) described in the 1985 Shop Manual (Volume H).
WARRANTY STATUS: "INFORMATION ONLY"