2005 SUZUKI JIMNY battery

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∆✱
✱✱ ✱O2S B1 S2 (HEATED OXY-
GEN SENSOR-2)When engine is running at 2000 r/min. for
3 min or longer after warming up.0.01 – 0.95 V
∆✱
✱✱ ✱PSP SW No load to power steering. OFF
DESIRED IDLE
(DESIRED IDLE SPEED)At idling with no load after warming up, M/T
at neutral, A/T at “P” rangeM/T 700 r/min
A/T 750 r/min
TP SENSOR VOLT
(THROTTLE POSITION
SENSOR OUTPUT VOLT-
AGE)Ignition switch
ON / engine
stoppedThrottle valve fully closed More than 0.2 V
Throttle valve fully open Less than 4.8 V
INJ PULSE WIDTH (FUEL
INJECTION PULSE
WIDTH)At specified idle speed with no load after
warming up2.0 – 3.6 msec.
At 2500 r/min with no load after warming up 2.0 – 3.6 msec.
IAC FLOW DUTY (IDLE
AIR CONTROL FLOW
DUTY)At idling with no load after warming up 5 – 25 %
TOTAL FT B1 At specified idle speed after warming up– 35 – +35 %
BATTERY VOLTAGE Ignition switch ON / engine stop 12 – 15 V
CANIST PRG DUTY
(EVAP CANISTER PURGE
FLOW DUTY)–0 – 100 %
CLOSED THROT POS
(CLOSED THROTTLE
POSITION)Throttle valve at idle position ON
Throttle valve opens larger than idle posi-
tionOFF
FUEL CUTWhen engine is at fuel cut condition ON
Other than fuel cut condition OFF
A/C CONDENSER FANIgnition switch
ONA/C not operating OFF
A/C operating ON
ELECTRIC LOADIgnition switch ON / Headlight, small light,
heater fan and rear window defogger all
turned OFFOFF
Ignition switch ON / Headlight, small light,
heater fan or rear window defogger turned
ONON
A/C SWITCHEngine running after warming up, A/C not
operatingOFF
Engine running after warming up, A/C oper-
atingON
PNP SIGNAL (PARK / NEU-
TRAL POSITION SIGNAL)
A/T onlyIgnition switch
ONSelector lever in “P” or “N”
positionP/N Range
Selector lever in “R”, “D”,
“2” or “L” positionD Range
EGR VALVE At specified idle speed after warming up 0 %
∆FUEL TANK LEVEL–0 – 100 %
BAROMETRIC PRESS–Display the barometric pres-
sure
FUEL PUMPWithin 3 seconds after ignition switch ON or
engine runningON
Engine stop at ignition switch ON. OFF SCAN TOOL DATA CONDITION REFERENCE VALUES

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THROTTLE POS (ABSOLUTE THROTTLE POSITION, %)
When throttle position sensor is fully closed position, throttle opening is indicated as 0% and 100% full open
position.
OXYGEN SENSOR B1 S1 (HEATED OXYGEN SENSOR-1, V)
It indicates output voltage of HO2S-1 installed on exhaust manifold (pre-catalyst).
OXYGEN SENSOR B1 S2 (HEATED OXYGEN SENSOR-2, V)
It indicates output voltage of HO2S-2 installed on exhaust pipe (post-catalyst). It is used to detect catalyst dete-
rioration.
DESIRED IDLE (DESIRED IDLE SPEED, rpm)
The Desired Idle Speed is an ECM internal parameter which indicates the ECM requested idle. If the engine is
not running, this number is not valid.
TP SENSOR VOLT (THROTTLE POSITION SENSOR OUTPUT VOLTAGE, V)
The Throttle Position Sensor reading provides throttle valve opening information in the form of voltage.
INJ PULSE WIDTH (FUEL INJECTION PULSE WIDTH, msec.)
This parameter indicates time of the injector drive (valve opening) pulse which is output from ECM (but injector
drive time of NO.1 cylinder for multiport fuel injection).
IAC FLOW DUTY (IDLE AIR (SPEED) CONTROL DUTY, %)
This parameter indicates current flow time rate within a certain set cycle of IAC valve (valve opening rate) which
controls the amount of bypass air (idle speed).
TOTAL FUEL TRIM (%)
The value of Total Fuel Trim is obtained by putting values of short Term Fuel Trim and Long Term Fuel Trim
together. This value indicates how much correction is necessary to keep the air / fuel mixture stoichiometrical.
BATTERY VOLTAGE (V)
This parameter indicates battery positive voltage inputted from main relay to ECM.
CANIST PURGE DUTY (EVAP CANISTER PURGE FLOW DUTY, %)
This parameter indicates valve ON (valve open) time rate within a certain set cycle of EVAP purge solenoid
valve which controls the amount of EVAP purge.
0% means that the purge valve is completely closed while 100% is a fully open valve.
CLOSED THROTTLE POSITION (ON / OFF)
This parameter will read ON when throttle valve is fully closed, or OFF when the throttle is not fully closed.
FUEL CUT (ON / OFF)
ON : Fuel being cut (output signal to injector is stopped)
OFF : Fuel not being cut
A/C CONDENSER FAN (A/C CONDENSER FAN RELAY, ON / OFF)
ON : Command for condenser fan relay operation being output.
OFF : Command for relay operation not being output.
ELECTRIC LOAD (ON / OFF)
ON : Headlight, small light, heater fan or rear window defogger ON signal inputted.
OFF : Above electric loads all turned OFF.
A/C SWITCH (ON / OFF)
ON : Command for A/C operation being output from ECM to A/C amplifier.
OFF : Command for A/C operation not being output.

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Inspection of ECM and Its Circuits
ECM and its circuits can be checked at ECM wiring connectors by
measuring voltage and resistance.
VOLTAGE CHECK
1) Remove ECM from body referring to Section 6E.
2) Check voltage at each terminal of connectors connected.CAUTION:
ECM cannot be checked by itself. It is strictly prohibited
to connect voltmeter or ohmmeter to ECM with connector
disconnected from it.
NOTE:
As each terminal voltage is affected by the battery volt-
age, confirm that it is 11 V or more when ignition switch
is ON.
1. ECM
2. ECM connectors (Viewed from harness side)

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[A] Fig. 1 for Step 2 / [B] Fig. 2 for Step 33 Check Wire Harness.
1) Disconnect MAP sensor connector with
ignition switch OFF.
2) Check for proper connection of MAP sensor
at “G” and “B/Bl” wire terminals.
3) If OK, then with ignition switch ON, check
voltage at each of “Lg/R” and “G” wire termi-
nals and body ground. See Fig. 2.
Is voltage about 4 – 6 V at each terminal?Go to Step 4.“Lg/R” wire open or
shorted to ground circuit
or shorted to power circuit
(See NOTE), “G” wire
open or shorted to
ground, poor E19-26 con-
nection or E19-22 con-
nection.
If wire and connection are
OK, confirm that MAP
sensor is normal and then
substitute a known-good
ECM and recheck.
4 Check MAP sensor according to “MAP Sensor
Individual Check” below.
Is it in good condition?“Lg/R” wire shorted to “G”
wire, “B/Bl” wire open,
poor E19-10 connection.
If wire and connection are
OK, substitute a known-
good ECM and recheck.Replace MAP sensor. Step Action Yes No
NOTE:
When battery voltage is applied to “Lg/R” wire, it is possible that MAP sensor is also faulty.

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DTC P1510 ECM Back-up Power Supply Malfunction
CIRCUIT DESCRIPTION
Battery voltage is supplied so that diagnostic trouble code memory, values for engine control learned by ECM,
etc. are kept in ECM even when the ignition switch is turned OFF.
DTC CONFIRMATION PROCEDURE
1) Clear DTC, start engine and run it at idle for 1 min.
2) Select “DTC” mode on scan tool and check DTC.
INSPECTION
1. Main fuse
2. Fuse box
DTC DETECTING CONDITION POSSIBLE CAUSE
Low voltage at terminal E18-7 after starting engine.“W” circuit open
ECM malfunction
Step Action Yes No
1 Check for voltage at terminal E18-7 of ECM
connector connected, under each condition,
ignition switch OFF and engine running.
Is it 10 – 14 V at each condition?Poor E18-7 connection or
intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection” in
Section 0A.
If wire and connections
are OK, substitute a
known- good ECM and
recheck.“W” circuit open.

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[A] Fig. 1 for Step 2 / [B] Fig. 2 for Step 3 / [C] Fig. 3 for Step 44 Check Fuel Pump Relay for Operation.
1) Check resistance between each two termi-
nals of fuel pump relay. See Fig.3.
Fuel pump relay resistance
Between terminals “A” and “B” : Infinity
Between terminals “C” and “D”: 100 – 150
Ω
ΩΩ Ω
2) Check that there is continuity between ter-
minals “A” and “B” when battery is con-
nected to terminals “C” and “D”. See Fig. 3.
Is fuel pump relay in good condition?“W/G” circuit open or poor
E18-19 connection.
If wire and connection are
OK, substitute a known-
good ECM and recheck.Replace fuel pump
relay. Step Action Yes No
CAUTION:
Check to make sure that connection is made between correct terminals. Wrong connection can cause
damage to ECM, wire harness, etc.

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TAble B-7 A/C Condenser Fan Control System Check
INSPECTION
Step Action Yes No
1 Check Fan Control System.
1) Connect scan tool to DLC with ignition switch OFF. See
Fig. 1.
2) Start engine and select “DATA LIST” mode on scan tool.
3) Warm up engine until coolant temp. is 110 °C, 230 °F or
higher and A/C switch turn OFF. (If engine coolant temp.
does not rise, check engine cooling system or ECT sen-
sor.)
Is A/C condenser fan started when engine coolant temp.
reached above temp.?A/C condenser fan con-
trol system is in good
condition.Go to Step 2.
2 Check A/C Condenser Fan Relay and Its Circuit.
1) Check DTC and pending DTC with scan tool.
Is DTC P0481 displayed?Go to DTC P0481 Diag.
Flow Table.Go to Step 3.
3 Check A/C Condenser Fan Relay (1).
1) Turn ignition switch OFF and remove A/C condenser fan
relay.
2) Check for proper connection to relay at terminals “A”
and “B”.
3) If OK, check that there is continuity between “A” and “B”
when battery is connected to terminals “C” and “D”. See
Fig. 2.
Is check result satisfactory?Go to Step 4. Replace A/C
condenser fan
relay.

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[A] Fig. 1 for Step 1 / [B] Fig. 2 for Step 3
Fig. 3 for Step 44 Check A/C Condenser Fan (1).
1) Turn ignition switch OFF.
2) Disconnect fan motor connector (2).
3) Check for proper connection to motor at “R/Bl” and “B”
terminals.
4) If OK, connect battery to motor and check for operation.
See Fig. 3.
Is it in good condition?“R”, “R/Bl” or “B” circuit
open.Replace A/C
condenser fan
motor. Step Action Yes No