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Connect the Saab Intelligent Tester (ISAT-86 10 651) scanner to Green diagnostic connector located under right front seat. Follow manufacturer’s test procedure to retrieve and erase DTCs. See ABS DTCS table. When fault-tracing ABS system, DO NOT directly probe ABS ECU connector pins. Use breakout box and breakout box lead connected between ABS ECU and connector. See Fig. 6 . Breakout box pin numbers are identical to ABS ECU terminal numbers. Problem ABS ECU Fault ABS ECU Fault (RAM) Defective System Relay No Signal From Left Front Wheel Sensor No Signal From Right Front Wheel Sensor No Signal From Left Rear Wheel Sensor Diagnose all other DTCs before diagnosing DTCs 42251 or 1. Breakout box pin numbers and ABS ECU terminal numbers are identical. 1. Turn ignition switch to RUN position. Check for battery voltage between breakout box pins No. 1 and 3, and pins No. 1 and 33. If no voltage is present at either pin No. 3 or 33, check ABS 30-amp fuse in main bulkhead fuse box. Also check Red wire from fuse to main relay and distribution block on battery tray. 2. If wiring is okay but voltage is still not present, ensure continuity is present between breakout box pin No. 3 and relay terminal No. 30 (White wire), and between breakout box pin No. 33 and relay terminal No. 87a (Black wire). Ensure 10-amp ABS fuse is okay.

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Automatic Transaxle 2-3 Shift Flare During First Minutes of Driving After Cold Soak (Perform Bulletin Procedure) Models: 2002 Saturn S-Series Vehicles with Automatic Transaxle (RPOs MP6, MP7) Attention: General Manager, Fixed Operations Manager, Parts Manager, Technician Condition: Some customers of 2002 S-series vehicles with MP6 or MP7 automatic transaxles may comment on a 2-3 shift flare during the first few minutes of driving after vehicle cold soak. Cause: This condition may be caused by improper pressure, a leak in the 2nd clutch circuit, improper clutch plate finish on 2nd and 3rd clutches, a restriction in the 3rd clutch oil delivery path in the end cover, or improper surface finish in the piston bores of the 2-3 clutch housing. Correction: To correct this condition, duplicate by cold soaking the vehicle the amount of time at temperature described by the owner. Refer to procedure in this bulletin. Service Procedure Verify proper transaxle pressures by installing gauge and performing stepped pressure test after cold soak. Refer to “Stepped Pressure Test” procedure in the 2002 Saturn S-Series Automatic Transaxle Service Manual. ^ If pressures are low, follow the diagnostic chart for DTC P0745 for possible causes of low pressure. Refer to “P0745 – PC Solenoid Pressure Low” diagnostic in the 2002 Saturn S-Series Automatic Transaxle Service Manual. ^ If pressures are within normal ranges, proceed to Step 2. Remove the transaxle end cover. Refer to “End Cover Replacement” in the 2002 Saturn S-Series Automatic Transaxle Service Manual. Check torque on input shaft nut and end cover 3rd clutch oil passage for restrictions. ^ Input shaft nut torque should be 150 N.m (111 ft-lb). If nut is found to be loose, remove nut, clean threads and install new nut using Service Manual procedures and proceed to check 3rd oil passage. ^ Check 3rd oil passage in the end cover by pouring transaxle fluid through it and another passage. If the passage is restricted, you will notice significantly less fluid flow through it. If 3rd clutch passage is found to be restricted, install new end cover per Service Manual procedures and retest for concern. ^ If nut and 3rd clutch passage are okay, proceed to Step 4. Remove transaxle from vehicle. Refer to “Transaxle Removal” in the 2002 Saturn S-Series Automatic Transaxle Service Manual. Disassemble transaxle and install new 2-3 clutch housing, clutch pistons and clutch plates. Refer to “Transaxle Disassemble” in the 2002 Saturn S-Series Automatic Transaxle Service Manual.

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Lambda closed loop tester with yellow test wire – 909 589 00 21 00 Oil telethermometer – 116 589 272 100 Test Conditions: Ignition system must be in good working order and engine at idle speed. Ignition timing must be set to specification. Testing Test Procedure Tests and General Diagnostics Lambda System Function Test 1985 Mercedes Benz 380SE (126 Chassis) V8-3839cc 3.8L SOHC (116)

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1. Place transmission in Park, turn ignition off and wait at least 6 seconds. Turn ignition on, engine off and observe 3 shift select buttons. If all 3 buttons blink once, go to next step. If all 3 buttons do not blink once, go to step 1 under TEST RESULTS . 2. During step 1) , if one button remains lit to indicate transfer case shift position, go to next step. If one button did not remain lit, go to step 3 under TEST RESULTS . 3. Shift transfer case to 4HI, to 2HI, then back to 4HI. If transfer case mode shifts between 4HI and 2HI, go to next step. If transfer case mode does not shift between 4HI and 2HI, go to step 5 under TEST RESULTS . 4. Apply parking brake. Place transmission in Park (A/T) or 1st gear (M/T). Turn ignition on, engine off. Place transfer case in 4HI position. Press 4LO shift select button. If 4LO shift select button blinks for 30 seconds then stops when 4HI button illuminates, go to next step. If operation is not as specified, go to step 7 under TEST RESULTS .