1322 / 1575
SAFARI 400NM
SR
NO
DTC
FTB
DESCRIPTION
CAUSES
EFFECT ON VEHICLE
CHECK
POINTS
CORRECTIVE ACTION
MIL
STATUS
CEL
205
U0167
31
No Signal
This DTC gets logged when the EMS is
not able to communicate with ICU ue to
the following reasons:~ - CAN network
problem~ - Immobilizer not connected~ -
Faulty Immobilizer~ - Faulty EMS ECU
1.
Check the continuity between Immobilizer pin 5 - EMS pin B48
& Immobilizer pin 3 - EMS Pin B47 If there is open circuit or
wrong connection, then rectify wiring harness connections to
make them inline with circuit schematics.
2.
Check whether CAN High (Pin No.B48) and CAN Low (Pin
No.B47) of EMS ECU are either shorted to battery or ground. If
so, then rectify the wiring harness connections.
3.
Clear errors through diagnostic s/w & read error again.
4.
Error still present replace the ICU.
5.
If Fault present after replacing ICU then replace Engine EMS.
6.
Ensure that the fault is cleared.
OFF
ON
206
U0426
86
Signal Invalid
This DTC gets logged When the CAN
Mutual authentication between
Immobilizer and engine EMS is failed /
Pairing is not done.
1.
Check proper connectivity of CAN High (Pin No.B48) and CAN
Low (Pin No.B47) lines in EMS ECU connector. If any issue
found then establish continuity by rectifying wiring harness
connections.
2.
Check whether CAN High (Pin No.B48) and CAN Low (Pin
No.B47) of EMS ECU are either shorted to battery or ground. If
so, then rectify the wiring harness connections.
3.
Check whether the Immobilizer is getting power supply.
4.
Do Pairing as per recommended procedure.
5.
Clear DTC.
6.
Check the error again & ensure that there is no error. IF error
still persists then replace Immobilizer.
7.
IF problem still persists then replace EMS ECU.
OFF
OFF
207
U1009
88
Bus off
1.
Short circuit failure between CAN
High and CAN Low lines.
2.
Short circuit failure between CAN Low
and Battery lines.
3.
Short circuit failure between CAN
High and Ground lines.
4.
Permanent short circuit failure in EMS
ECU.
1.
EMS ECU used to declare invalid
CAN vehicle speed signal to raise
F_M vehicle speed fault and use
a recovery value for vehicle
speed.
2.
EMS ECU will stop CAN
communication.
1.
Check CAN wiring harness for short circuit failure(s).
2.
Measure resistance between CAN High (OBD Connector pin
no.6) and CAN Low (OBD Connector pin no.14) lines to detect
short circuit failure.
3.
Measure resistance between CAN Low (OBD connector pin
no.14) and Battery lines (OBD connector pin no.16) to detect
short circuit failure.
4.
Measure resistance between CAN High (OBD connector pin
no.6) and Ground lines (OBD connector pin no.4) to detect
short circuit failure.
5.
If the above remedies fail to rectify the failure, then replace
EMS ECU.
OFF
ON