1166 / 1575
SAFARI STROME
SR
NO
DTC
DESCRIPTION RESOLVE
PRIORITY
EFFECT ON VEHCLE
CAUSES
CHECK POINTS
CORRECTIVE ACTION
CEL
MIL
STATUS
85
P0652
Sensor
Reference
Voltage “B”
Circuit Low.
H
1. Engine may be not start upon cranking
(as cam sensor does not get power).
2. EGR is disabled;
3. Reduced torque Mode.
4. Pedal reduction (P1121) is set. (as pedal
track 2 is powered by this supply)
5. Erratic behavior of sensors (e.g. acc
pedal track 2 reading).
6. This DTC also causes faults related to
cam sensor and Acc pedal track 1 faults
getting registered (as these sensors are
powered by supply voltage 2).
This DTC gets logged if the
Voltage 2 is less than lower
threshold.
1. Check the connection of
sensors supplied by
Reference voltage1 and
Reference voltage2.
2. Check sensor connections
for rust dirt etc.
3. Check ECU.
1. Check whether the EMS ecu pin 78 (CAM sensor
& Pedal sensor 1 supply pin) is open circuited to
pedal sensor connector/CAM sensor connector or
pin 78 is Short circuited to ground. If so then rectify
the wiring harness connections.
2. Check sensor connections for rust dirt etc.;
Follow rectification process of concerned sensor if
faulty (cam sensor; accelerator pedal sensor track
2).
3. Check ECU; Replace ECU; if problem persists
4. Confirmatory check after rectification. Check with
diagnostic tool if the sensor supply voltage lies in
between 4.75 V to 5.35 V.
Y
N
86
P0653
Sensor
Reference
Voltage “B”
Circuit High.
H
1. Engine may be not start upon cranking
(as cam sensor does not get power)
2. EGR is disabled;
3. Reduced torque Mode.
4. Pedal reduction (P1121)is set. (as pedal
track 2 is powered by this supply)
5. Erratic behavior of sensors (e.g. acc
pedal track 2 reading)
6. This DTC also causes faults related to
cam sensor and Acc pedal track 1 faults
getting registered (as these sensors are
powered by supply voltage 2).
This DTC gets logged if the
Voltage 2 value is more
than upper threshold.
1. Check the connection of
sensors supplied by
Reference voltage1 and
Reference voltage2.
2. Check sensor connections
for rust dirt etc.
3. Check ECU.
1. Check whether the EMS ecu pin 78 (CAM sensor
& Pedal sensor 1 supply pin) is open circuited to
pedal sensor connector/CAM sensor connector or
pin 78 is Short circuited to battery. If so then rectify
the wiring harness connections.
2. Check sensor connections for rust dirt etc. Follow
rectification process of concerned sensor if faulty.
(Cam sensor; accelerator pedal sensor track 2).
3. Check ECU; Replace ECU; if problem persists.
4.Confirmatory check after rectification~ Check with
diagnostic tool if the sensor supply voltage lies in
between 4.75 V to 5.35 V.
Y
N
87
P0691
Fan 1 Control
Circuit Low.
M
1. AC is not functioning – AC Off.
2. Radiator fan will remain run continuously.
3. MIL is ON.
4. Reduced Torque active.
This DTC gets logged if the
Low speed fan (Top fan)
control - short circuit to
ground.
1. Check the fan control relay
connection.
2. Check electrical continuity.
3. Check ECU.
1. Check the fan control relay connection; Perform
necessary repairs if connection is faulty.
2. Check electrical continuity between ECU pin 66
to Relay connector as per circuit schematic;
Replace relay if problem persists. And perform
actuator test.check whether he ecu pin 66 is short
circuited to ground. If so hen recify he wiring
harness connections.
3. Check ECU; Replace ECU; if problem persists.
4. Confirmatory check after rectification Perform
Actuator test for fan and visually checks that fan is
operating. Also ensure radiator fan is rotating is
right direction.
Y
N