PRE-RELEASE
(TA440-0334) Transmission Control Module – Extra Diagnosis fault code P0826- 06
| TECHNICAL ADVICE - Quick information for your help | |
| Bulletin Nbr: | TA440-0334 |
| Date: ........... | December 2003 |
| Market: | All |
| Transmission Control Module – Extra Diagnosis fault code P0826- 06 |
| VEHICLES CONCERNED |
Saab 9-3 (9440) aut.
| BACKGROUND |
This code is generated by and stored in TCM. A large number of TCMs have been replaced without curing the root cause. The purpose of this document is to provide an appropriate strategy as how to find the root cause, which is normally found to be due to an open circuit.
| CONDITIONS |
Pin 8 in TCM connector 502A is a direct link from SLM (Shift Lever Module). When the gear selector lever is in ‘M’ position the TCM activates the manual gearshift mode. The SLM supply’s the following voltage in the direct link:
| • |
Hold gear, U = 0.5 - 1.4 (V)
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| • |
Manual up shift U = 1.4 - 1.8 (V)
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| • |
Manual down shift U = 2.7 - 3.5 (V)
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| SYMPTOM DESCRIPTION |
Check gearbox light on. The selector lever function is partial or not working at all.
| ACTION |
NOTE: Erase fault codes before starting the fault tracing as shown below. TECH 2 Version 108 000 or later must be used.
Similar events that could cause the above described failure.
There are several different failures that could result in generation of P0826-6. See the table on below.| Disconnection of cables to SLM connector 726 | Fault code | Gear selector | SID message |
| Pin 2, supply voltage | TCM=P0826-6 | Out of function | Gearbox Failure |
| Pin 3, ground | TCM=P0826-6 | Out of function | Gearbox Failure |
| Pin 12, CAN-BUS | TCM=P0826-6 | Out of function | Gearbox Failure |
| Pin 7, TCM connection | TCM=P0826-6 & SLM=P1802 | Functions except in manual mode | Gearbox Failure |
TCM will generate P0826-06 if there is a long or short-term disconnection to any of the pins in Connector 726. In case of a long-term disconnection the driver will observe that the gear selector is partially or totally out of function. The gear selector should then be examined.
Short-term disconnection in any of the following pins and connectors could result in generation of P0826-06.
Pin 2 - SLM connector 726 ---------- Pin 27 in connector 22
Pin 3 - SLM connector 726 ---------- J176 ---------- G41
Pin 12 - SLM connector 726 -------- Pin 83 in connector H102-1
Pin 7 - SLM connector 726 ---------- Pin 63 in connector H102-1 \ Pin 8 in TCM connector 502A
