Symptom:
CAN B U S CIR CU IT
Wh e n Mo n i to re d a n d S e t Co n d it i o n :
CAN B U S CIR CU IT
Wh en Mon it or ed: Alwa ys m on it or ed wit h syst em a ct ive a t ea ch ign ition cycle.
Set Con dit ion : Open cir cuit in t he CAN C Bu s (+) circu it or CAN C Bu s (-) cir cu it , Sh or t
to gr oun d of CAN C Bu s (+) cir cuit or CAN C Bu s (-) cir cu it , Sh or t t o Volt age of CAN C Bu s
(+) cir cu it or CAN C Bu s (-) cir cuit , CAN C Bu s (+) circu it sh or ted to CAN C Bu s (-) cir cu it ,
or a TCM fa ilur e. N ot e: All CAN messa ge m issin g DTCS will a lso be pr esen t , wh ich
in dica t es a Bu s F a ilu r e.
POSSIBLE CAUSES
CAN BU S CIRCUITS OP E N TO SKRE EM OR ECM
CAN BU S CIRCUITS OP E N TO TCM
CAN CIRCUITS SH ORTE D TO GROUND
CAN CIRCUIT SH ORT TO VOLTAGE
CAN CIRCUITS SH ORTE D TOGE TH ER
MODULE SH ORT INTE RNALLY
MODU LE SH ORT TO GROU N D
MODULE SH ORT TO VOLTAGE
ECM - TERMINATING RESISTOR
SENTRY KEY REMOTE ENTRY MODULE
TRANSMISSION CONTROL MODULE
48
TRANSMISSION - NAG1