Symptom Chart - External Controls

SYMPTOM CHART - EXTERNAL CONTROLS

Condition	Possible Sources	Action
Brake shift interlock system does not release/lock correctly	Circuitry open/shorted Fuse(s) Brake pedal position (BPP) switch	Go to Pinpoint Test A .
Brake shift interlock system does not release/lock correctly	Brake shift interlock actuator (BSIA) damaged	INSTALL a new selector lever assembly. REFER to SELECTOR LEVER .
-	Transmission range (TR) sensor	DIAGNOSE and REPAIR all TR sensor DTCs. REFER to AUTOMATIC TRANSAXLE/TRANSMISSION - 6F50 article.
Transmission control (TC)/overdrive (O/D) cancel switch does not operate correctly	Instrument cluster (IC) Circuitry open/shorted PCM TC switch	Go to Pinpoint Test B .
Selector lever linkage is out of correct gear relationship	Selector lever linkage out of adjustment	REFER to SELECTOR LEVER CABLE ADJUSTMENT .
-	Manual control lever not aligned correctly on the sensor (flat surfaces do not line up)	REMOVE the manual control lever nut and CHECK the alignment of the manual control lever.
-	Loose selector lever cable bracket	CHECK the selector lever cable bracket. TIGHTEN as necessary.