PINPOINT TEST P: AN INDICATOR IS INOPERATIVE/ALWAYS ON — SERVICE ENGINE SOON
PINPOINT TEST Q: AN INDICATOR IS INOPERATIVE/ALWAYS ON — TURN/HAZARD
Is the resistance less than 5 ohms?
Yes
INSTALL a new instrument cluster; REFER to
Instrument Cluster
. CLEAR the DTCs. REPEAT the self-test.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
CONDITIONS
DETAILS/RESULTS/ACTIONS
P1
CARRY OUT THE INSTRUMENT CLUSTER SERVICE ENGINE SOON INDICATOR ACTIVE COMMAND
Trigger the HEC active command MIL.
Did the SERVICE ENGINE SOON indicator illuminate?
Yes
REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
No
INSTALL a new instrument cluster; REFER to
Instrument Cluster
. CLEAR the DTCs. REPEAT the self-test.
CONDITIONS
DETAILS/RESULTS/ACTIONS
Q1
CHECK THE TURN SIGNAL AND HAZARD LAMPS OPERATION
Operate the left and right turn signals.
Operate the hazard lamps.
Do the turn signals and hazard lamps operate correctly?
Yes
GO to
Q2
.
No
REFER to
Section 417-01
.
Q2
CHECK THE CIRCUIT IN QUESTION — CIRCUIT 2 (WH/LB) (RH) OR CIRCUIT 3 (LG/WH) (LH)
Disconnect the instrument cluster C250 (RH) or instrument cluster C251 (LH).
Page 29 of 32
1999 Mustang Workshop Manual
1/18/2013
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSXB/~MUS~LEN/20/...
