Symptom:
*EN GIN E WILL N OT CRAN K
POSSIBLE CAUSES
BATTE RY CABLE H IGH RE SISTANCE
BATTE RY CABLE S
CH E CKING ECM POWE R AN D GROUN DS
CH E CKIN G F OR TCM CODE S
ECM
ECM CODES PRESENT
IGNITION SWITCH OUTP UT (START) CIRCU IT OP EN
ME CH AN ICAL P ROBLE M
SKREE M CODES P RESE NT
STARTE R MOTOR
STARTE R MOTOR RE LAY
STARTE R MOTOR RE LAY CIRCUIT(S) OP EN
STARTE R MOTOR RE LAY CIRCUIT(S) SH ORTE D TO GROUND
STARTE R RE LAY CONTROL CIRCUIT SH ORTE D TO VOLTAGE
STARTE R RE LAY OUTP UT CIRCU IT OP EN
TE S T ACTION AP PLICAB ILITY
1 Tur n th e ign it ion off.
NOTE: The battery must be fully charged before diagnosing a no crank
condition.
In spect t h e ba t t er y ca bles for cor r osion , loosen ess or oth er pr oblem s.
Is t h er e eviden ce of pr oblem s?
All
Ye s → Repa ir a s n ecessa ry.
Per for m NO START VERIF ICATION - VER-1.
No → Go To 2
2 Tur n th e ign it ion off.
Rem ove t h e St a r t er Mot or Rela y fr om t he F u se/Rela y Block.
Con n ect a t est ligh t bet ween cavit ies 85 a n d 86 of t h e Sta r t er Mot or Rela y conn ect or
in th e Fu se/Rela y Block conn ect or.
Wh ile obser vin g th e test ligh t , a t t empt t o st a r t t he en gin e.
Did t h e t est ligh t illu m in a t e wh en tu r n in g th e ign ition swit ch to th e Cr a n k posit ion ?
All
Ye s → Go To 3
No → Go To 8
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DRI V EABI LI T Y - DI ESEL
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