SMU - Revised Engine Cooling Fan Ground Circuit Information
| Subject: | Revised Engine Cooling Fan Ground Circuit Information |
| Models: | 1999 Chevrolet Malibu |
| 1999 Oldsmobile Cutlass |
| with V6 Engine |
This bulletin is being issued to revise the engine cooling fan ground circuit information in the Engine Cooling, Engine Controls and Wiring Systems sub-sections of the following Service Manual. Please replace the current information in the Service Manual with the following information.
The following information has been updated within SI2000. If you are using a paper version of this Service Manual, please make a reference to this bulletin on the affected page.
1999 L/N Service Manual / Book Cover ID GMP/99-LN-2 / Volume 2 of 3
Cooling Fan Schematic (Engine Cooling Fans)
On page 6-406, pins B12 and C12 of connector C1 from Underhood Junction Block, the circuit should be updated to read V6 only.
Engine Controls Schematic (Cooling Fans)
On page 6-982, the schematic should be updated to read the same as the above Cooling Fan Schematic.
1999 L/N Service Manual / Book Cover ID GMP/99-LN-3 / Volume 3 of 3
Underhood Junction Block
On page 8-251, the label and table should be updated to read as follows.
Fuse/Circuit Breaker | Rating | Description |
|---|---|---|
ABS | 40A | Electronic Brake Control (ABS) Relay |
ABS BATT | 10A | Electronic Brake Control Module (EBCM) |
ABS IGN | 10A | Electronic Brake Control Module (EBCM) |
A/C BFC | 10A | A/C Compressor Clutch and Body Control Module (BCM) |
AUTO TRANS | 10A | Automatic Transaxle |
AUX PWR/CIGAR | 20A | Auxiliary Power Outlet and Cigar Lighter (Chevrolet) |
B/U LMP BTSI | 10A | Park/Neutral Position Switch |
COOL FAN #1 | 30A | Fan Control Relay #1 |
COOL FAN #2 | 15A | Fan Control Relay #2 |
COOL FAN #2 (V-6 ONLY) | 30A | Cooling Fans (V-6 Only) |
ERLS | 10A | EVAP, EGR, PCM, HO2S 1, and HO2S 2 |
EVO/ABS SOL | 15A | ABS Solenoids, Left Front and Right Front |
F/P INJR | 15A | Fuel Pump and Fuel Injectors |
GEN BATT | 10A | Generator |
HI BLO MOT | 30A | Blower Motor |
HORN | 15A | Horn |
HTR A/C IGN | 10A | Daytime Running Lamps (DRL), Rear Defogger, Heater A/C Control Assembly, and Air Temperature Actuator |
IGN MOD | 10A | Ignition Control (IC) Module |
IGN SW - BATT1 | 40A | Ignition Switch |
IGN SW - BATT2 | 30A | Ignition Switch |
L/H BEC BATT1 | 40A | LH IP Junction Block |
L/H BEC BATT2 | 30A | LH IP Junction Block |
LH HDLP | 15A | Headlamps, Left Side |
PARK LPS | 15A | Park Lamps |
PCM BATT | 10A | Powertrain Control Module (PCM) |
PCM IGN | 10A | Powertrain Control Module (PCM) |
R/H BEC BATT | 30A | RH IP Junction Block |
RH HDLP | 15A | Headlamps Right Side |
RR DEFOG | 30A | Rear Defogger |
Connector View -- Underhood Junction Block C1 (L82 Only)
On page 8-262, the title should be updated to read Underhood Junction Block C1 (V6 Only) and table should be updated to read as follows.
Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
B9-B11 | -- | -- | Not Used |
B12 | Blk | 450 | Ground |
C1-C2 | -- | -- | Not Used |
C12 | Blk | 450 | Ground |
Ground Distribution Schematics (Cell 14: G103 and G105)
On page 8-238, pin C12 of connector C1 from Underhood Junction Block, the circuit should be updated to read V6 only.
