SAAB WIS ONLINE

P1230

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE. Idling speed incorrect. Starting problems, especially when engine is cold Cruise control not working.

P1230


Throttle Position Sensor 1 and 2 Circuit. Sum Out of Range.

(Faulty signal from throttle disc position sensor)


Fault symptom


• CHECK ENGINE.

• Idling speed incorrect.

• Starting problems, especially when engine is cold

• Cruise control not working.


Diagnostic procedure

Note

Diagnosis has been improved in more recent software which means it is no longer necessary to change the throttle body. The software providing enhanced diagnosis is available for all model years and engine variants.

The throttle body must be reset mechanically following SPS programming (Service Programming System). If this is not done, other DTCs will be generated after several running cycles.

Vehicles prior to MY02:

1. Check the software version. Does the control module have an earlier software version than in the "Software table"? (See below.)

YES , go to step 2.

NO , go to step 3.

2. Perform SPS programming (Service Programming System).

NOTE: Do not change the throttle body.

2.1. Reset the limp-home mechanism. See Resetting triggered limp-home solenoid .

2.2. Test driver the car.

2.3. Read off the DTCs.

2.4. Has the DTC reappeared?

YES , go to step 3.

NO , the measures have been successful.

3. Perform regular fault diagnosis.


On-Board Diagnostics

Type of diagnosis:


- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.


Enable criteria:


- Ignition in ON position.


Fault criteria:


- The sum of voltages from throttle position sensors 1 and 2 exceeds 5.70 V for more than 0.8 s or is less than 4.59 V for more than 0.3 s.


Dependents:


- None.


System reaction to a fault:


- Throttle control goes into limp-home mode. The limp-home solenoid will be activated 5 times in succession each time the ignition is turned on until the fault has been rectified and the trouble codes cleared.




OK report:


- Accelerator pedal has been depressed at some time and then fully released. 120 s has expired since then without fault criteria being fulfilled.


Fault handling: (See “Fault diagnosis, general” for more information.)


- CHECK ENGINE goes on immediately and can be turned off only by clearing the trouble codes.


Diagnostic help



Fault diagnosis relates to incorrect signals from the throttle disc position sensor and its wiring.

Functions in the diagnostic tool related to the fault:


• Throttle Position Sensor 1, unit V.

• Throttle Position Sensor 2, unit V.


See also description of read value under "Read Values" menu for more information.

Checking the wiring

Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Check switches, connectors and crimp connections for oxidation, withdrawn pins and pin clamping force.

Software table

Perform SPS programming (Service Programming System) if T7 has an earlier software version than that stated below. The software below has the updated diagnostic procedure for P1230.

Model year

Engine type

Software version

Software number

98½

9-5 B235E OBD2 US

e925635c.53e

5383369

98½

9-5 B235E ORVR US

ea1y635c.53g

5383377

99

9-5 B235E RU

ea1y635c.531

5383351

99, 00

9-5 B205E RU

ea1yza9c.47m

5383310

00, 00½

9-5 B235R M1 EU

eb30za9c.56l



5383583

00, 00½

9-5 B235E M1 EU

eb30za9c.53x

5383542

00, 00½

9-5 B235E LEV EU

eb30za9c.53h

5383518

00, 00½

9-5 B235E 163HP EU

eb30za9c.53i

5383492

00, 00½

9-5 B235E LRV TUN US

eb30za9c.534

5383526

00, 00½

9-5 B235R LEV US

eb30za9c.56c

5383575

00, 00½

9-5 B235R LEV EU

eb30za9c.56d

5383559

00, 00½

9-5 B235R LEV EU

eb30za9c.56k

5383567

00, 00½

9-5 B235E LEV US

eb30za9c.53c

5383534

00½

9-5 B235E GAS EU

ec0x633c.532

5383807

98, 99, 00

9-5 B205E 190HP EU

ea1yza9c.47b

5383294

98, 99, 00

9-5 B205E TUN EU

ea1yza9c.47h

5383328

99, 00, 00½

9-5 B235E LEV RU

eb30za9c.53w

5383500

98, 99, 00, 00½

9-5 B205E EU

ea1yza9c.47d

5383302

98, 99, 00, 00½

9-5 B235E 163HP EU

ea1y635c.53f

5383336

01

9-5 B235R EC2000 M1 EU

ec0x633c.56m

5383856

01

9-5 B235R EC2000 EU

ec0x633c.56e

5383849

01



9-5 B235R LEV US

ec0x633c.56f

5383872

01

9-5 B235R EC2000 RW

ec0x633c.56g

5383864

01

9-5 B205E EC2000 TUN RW

ec0x633c.47x

5383773

01

9-5 B235E EC2000 EU

ec0x633c.53j

5383799

01

9-5 B205E EC2000 TUN EU

ec0x633c.47n

5383765

01

9-5 B235E EC2000 M1 EU

ec0x633c.53z

5383815

01

9-5 B235E EC2000 163HK EU

ec0x633c.53l

5383781

01

9-5 B235E LEV US

ec0x633c.53k

5383831

01

9-5 B235E EC2000 RW

ec0x633c.53m

5383823

01

9-5 B205E EC2000 RW

ec0x633c.47p

5383757

01

9-5 B205E EC2000 EU

ec0x633c.47o

5383740

01

9-5 B205E EC2000 TUN RW

ed0t62dc.47l

5382858

02

9-5 B205E EC2000 RW

ed0t62bc.47j

5382833

02

9-5 B235R LEV US

ed0ty3oc.56j

5383252

02

9-5 B235E EC2000 RW

ed0ty3bc.53r

5382882

02

9-5 B235E EC2000 EU

ed0ty3ac.53q

5382866

02

9-5 B235R EC2000 EU

ed0tc44c.56h

5382890

02

9-5 B205E EC2000 EU

ed0t62ac.47i

5382825

02

9-5 B235R EC2000 RW

ed0tc45c.56i

5382908

02

9-5 B235E LEV US

ed0ty3nc.53s

5383245

02

9-5 B235E EU

ea1y635c.53d

5383344

02

9-5 B235E GAS EU

ed0ty39c.533

5382874

02

9-5 B205E EC2000 TUN EU

ed0t62cc.47k

5382841