Infiniti Q45 (FY33). Manual — part 215
5) Maintain the following condition at least 50 consecutive
seconds.
B/FUEL SCHDL: 2.5 ms or more
CMPS-RPM (POS): 2,000 - 3,000 rpm
Selector lever: Suitable position
VHCL SPEED SE: More than 70 km/h (43 MPH)
During this test P0130 may be displayed on the
CONSULT-II screen.
6) If 1st trip DTC is detected, go to “DIAGNOSTIC
PROCEDURE”, EC-187.
SEF353W
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ OR ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
OVERALL FUNCTION CHECK
Use this procedure to check the overall function of the closed loop
control. During this check, a 1st trip DTC might not be confirmed.
1) Start engine and warm it up to normal operating tem-
perature.
2) Set voltmeter probes between ECM terminals
q
82
(RH),
q
83
(LH) (sensor) and ground.
3) Check the following with engine speed held at 2,000
rpm constant under no-load.
I
The voltage should go above 0.70V at least once.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- OR -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
I
The voltage should go below 0.21V at least once.
4) If NG, go to “DIAGNOSTIC PROCEDURE”, EC-187.
DIAGNOSTIC PROCEDURE
Refer to TROUBLE DIAGNOSIS FOR DTC P0133 (B1), P0153
(B2), EC-187.
GI
MA
EM
LC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
TROUBLE DIAGNOSIS FOR DTC P1148 (B1), P1168 (B2)
Closed Loop Control (P1148: Left bank),
(P1168: Right bank) (Cont’d)
EC-389
Traction Control System (TCS) Signal Circuit
The ECM uses this circuit line for checking the TCS operation.
Voltage signals are sent and received between the ECM and the
throttle actuator control module.
★
Freeze frame data is not stored in the ECM for the TCS signal circuit.
The MIL will not light for TCS signal circuit malfunction.
ON BOARD DIAGNOSIS LOGIC
Diagnostic Trouble
Code No.
Malfunction is detected when .
Check Items
(Possible Cause)
P1210
0106
I
An excessively low or high voltage from the
throttle actuator control (TAC) module is sent to
ECM.
I
Harness or connectors
(The circuit is open or shorted.)
I
Throttle actuator control (TAC) module
DIAGNOSTIC TROUBLE CODE CONFIRMATION
PROCEDURE
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch “OFF” and wait at least 5 seconds before conducting
the next test.
1) Turn ignition switch “ON” and TCS switch “ON”, then
start engine.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Run engine for at least 3 seconds.
4) If 1st trip DTC is detected, go to “DIAGNOSTIC
PROCEDURE”, EC-392.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ OR ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) Turn ignition switch “ON” and TCS switch “ON”, then
start engine.
2) Run engine for at least 3 seconds at idle speed.
3) Turn ignition switch “OFF”, wait at least 5 seconds and
then turn “ON”.
4) Perform “Diagnostic Test Mode II (Self-diagnostic
results)” with ECM.
5) If 1st trip DTC is detected, go to “DIAGNOSTIC
PROCEDURE”, EC-392.
TROUBLE DIAGNOSIS FOR DTC P1210
EC-390
TEC653
GI
MA
EM
LC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
TROUBLE DIAGNOSIS FOR DTC P1210
Traction Control System (TCS) Signal Circuit
(Cont’d)
EC-391
SEF148TB
SEF437U
DIAGNOSTIC PROCEDURE
INSPECTION START
CHECK INPUT SIGNAL CIRCUIT.
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector
and TAC module harness connector.
3. ECM terminal
q
73
and TCS terminal
q
7
.
Continuity should exist.
If OK, check harness for short to
ground and short to power.
OK
E
NG
Repair harness or connec-
tors.
CHECK COMPONENT
Check TAC module function.
Make sure that TAC module and circuit
function properly. Refer to BR section
(“Self-diagnosis for TAC module”),
(“TROUBLE DIAGNOSIS FOR TCS”).
OK
E
NG
Replace throttle position
switch.
Perform “TROUBLE DIAGNOSIS FOR
INTERMITTENT INCIDENT”, EC-117.
INSPECTION END
TROUBLE DIAGNOSIS FOR DTC P1210
Traction Control System (TCS) Signal Circuit
(Cont’d)
H
H
H
H
EC-392
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