Questionkevin, my soms 99 cherkee sport has an engine light on. the codes are as follows p1491 and p0705. can i repair them myself and how do i do it
tks
AnswerP0705 CHECK SHIFTER SIGNAL
possible causes
SHIFT LEVER POSITION CIRCUIT WIRING DAMAGED
TCM RANGE SWITCH CKT DEFECTIVE
TRS CIRCUIT ON TCM DEFECTIVE
TRS OD SENSE CKT ON TCM DEFETIVE
TRS SENSE CKT AT TCM INOPERATIVE
TRS 1-2 SENSE CIRCUIT ON TCM DEFECTIVE
TRS 3 SENSE CIRCUIT ON TCM DEFECTIVE
TRS REVERSE SENSE CIRCUIT ON TCM DEFECTIVE
TRS SENSE CKT ON TCM DEFECTIVE
FUSED IGNITION SWITCH OUTPUT OPEN AT TRS CONNECTOR
TRS 1-2 SENSE CIRCUIT OPEN
TRS 3 SENSE CIRCUIT OPEN
TRS IN 1-2 IS OPEN
TRS IN 3RD IS OPEN
TRS IN OD IS OPEN
TRS INTERNAL FAILURE
TRS INTERNAL FAULT
TRS OD SENSE CIRCUIT OPEN
TRS OPEN IN REVERSE
TRS REVERSE SENSE CIRCUIT OPEN
TRS SENSE CIRCUIT OPEN
TRS SENSE CIRCUIT SHORT TO GROUND
TRS SENSE CIRCUIT SHORT TO VOLTAGE
TRS SENSE CIRCUIT SHORT TO VOLTAGE
TRS STUCK IN ON POSTION
P-1491 RAD FAN CONTROL RELAY CIRCUIT
Possible causes
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
RADIATOR FAN CONTROL RELAY DEFECTIVE
RAD FAN RLY CNTRL CKT SHORT TO GROUND
RADIATOR FAN CNTRL RLY CKT WIR HARN INTER DEF
RADIATOR FAN CNTRL RLY CKT WRG HARN OBS DEF
RADIATOR FAN RELAY CONTROL CIRCUIT OPEN
PCM DEFECTIVE
