1999 BMW 525i Workshop Manual

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On-Board Diagnostics
DIAGNOSTIC TROUBLE CODES
(DTCs)
Below is a listing of E39 powertrain (automatic transmission
and engine)
SAE P-codes, the corresponding BMW fault
codes, and the fault code definitions.
BMW fault codes expand on the SAE sanctioned DTCs and
are accessible primarily through the BMW diagnostic scan
tool or a BMW-specific scan tool.
l~utomatic transmission diagnostic trouble codes
P-code
IBMW-FC I DTC Definition
Ip0560 196 ISystem Voltage I
IPO~OO I129 l~eriai Communication Link I
1~0715 116 I InpuVTurbine Speed Sensor 'A' Circuit I
PO600
PO601
PO603
PO606
PO705
PO705
PO709
144
80
81
82
8
60
60
PO71 5
PO71 6
PO717
PO720
PO720
PO720
I I
PO721 159 loutput Speed Sensor Circuit RangeIPerformance I
Serial Communication Link
Internal Control Module Memory Check Sum Error
Internal Control Module Keep Alive Memory (KAM) Error
ECMIPCM Processor
Transmission Range Sensor 'A' Circuit Maliunction (PRNDL Input)
Transmission Range Sensor
'A' Circuit Malfunction (PRNDL input)
Transmission Range Sensor
'A' Circuit Intermittent
I I'
1~0722 132 IOutput Speed Sensor Circuit No Signal I
33
33
33
32
42
59
PO720
I I
PO727 1150 I Engine Speed Input Circuit No Signal
InpuVTurbine Speed Sensor 'A' Circuit
inpuVTurbine Speed Sensor 'A' Circuit RangeiPerformance
InpuVTurbine Speed Sensor 'A' Circuit No Signal
Output Speed Sensor Circuit
Output Speed Sensor Circuit
Out~ut Speed Sensor Circuit
PO720 1106 /output Speed Sensor Circuit
62
Output Speed Sensor Circuit
PO730
PO730
PO731
PO731
PO731 I I
100
102
50
51
100
PO731
incorrect Gear Ratio
Incorrect Gear Ratio
Gear 1 incorrect Ratio
Gear 1 incorrect Ratio
Gear 1 Incorrect Ratio
PO732 152 /Gear 2 Incorrect Ratio
131
Gear
1 Incorrect Ratio

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On-Board Diagnostics
l~utornatic transmission diagnostic trouble codes (continued) -
P-code /BMW-FC I DTC Definition - PO732
PO732
PO733
PO733
PO733
PO733
PO734 -
I I
I I
PO742 / 48 l~orque Converter Clutch Circuit Stuck On
PO734
100
132
53
57 122
133
54
PO735
PO735
PO735
PO740
PO740
PO740
PO741
I I
PO743 14 l~or~ue Converter Clutch Circuit Electrical
Gear
2 Incorrect Ratio
Gear 2 Incorrect Ratio
Gear 3 incorrect Ratio
Gear 3 Incorrect Ratio
Gear 3 Incorrect Ratio
Gear 3 Incorrect Ratio
Gear 4 Incorrect Ratio
Gear
4 Incorrect Rat10 PO734
I I
PO743 132 l~or~ue Converter Clutch Circuit Electrical
PO734 1134 IGear 4 Incorrect Ratio
123
55 101
135
4
48 111
48 Gear 5 Incorrect Ratio
Gear 5
Incorrect Ratio
Gear 5 Incorrect Ratio
Torque Converter Clutch
Circuitlopen
Torque Converter Clutch Circuitlopen
Torque Converter Clutch Circuitlopen
Torque Converter Clutch Circuit Performance or Stuclc Off
PO745
PO748
PO748
PO750
PO751
PO751
I I
PO755 117 IShift Solenoid '8' I
PO752
PO753
PO753
PO756 117 I~hift Solenoid '8' Performance or Stuck Off I
1
1
5
16
6 16 Pressure Control Solenoid 'A'
Pressure Control Solenoid 'A' Electrical
Pressure Control Solenoid
'A' Electrical
Shift Solenoid
'A'
Shift Solenoid 'A' Performance or Stuck Off
Shift Solenoid
'A' Performance or Stuck Off
16
16
30 Shift
Solenoid
'A' Stuck On
Shift Solenoid 'A' Electrical
Shift Solenoid
'A' Electrical
PO757
PO758
PO758
PO760
PO761
17
17
33 18
18 Shift
Solenoid '8' Stuclc On
Shift Solenoid
'8' Electrical
Shift Solenoid
'8' Electrical
Shift Solenoid
'C'
Shift Solenoid 'C' Performance or Stuclc Off

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OBD-11
On-Board Diagnostics
Automatic transmission diagnostic trouble codes (continued)
P-code
PO762
PO763
PO763
PO763
PO775
PO782
PO783 I I
PO795
PO798
PO962
PO963
PO966
PO967
PO970
PO971
BMW-FC
18
2 18
32
2
57
58
I I -
DTC Definition
Shift Solenoid 'C' Stuck On
Shift Solenoid
'C' Electrical
Shift Solenoid
'C' Electrical
Shift Solenoid
'C' Electrical
Pressure Control Solenoid
'B'
2-3 Shift
3-4 Shift
PO778 12 I Pressure Control Solenoid 'B' Electrical
3
3
1
1
2
2
3
3
PO973
PO979
PI 700
PI719
PI720
Pi731
PI732
PI734
Pressure Control Solenoid 'C'
Pressure Control Solenoid
'C' Electrical
Pressure Control Solenoid
'A' Control Circuit Low
Pressure Control Solenoid 'A' Control Circuit High
Pressure Control Solenoid
'6' Control Circuit Low
Pressure Control Solenoid
'0' Control Circuit High
Pressure Control Solenoid 'C' Control Circuit Low
Pressure Control Solenoid 'C' Control Circuit
High
PI734
PI738
Pi738
PO976 117 IShift Solenoid 'B' Control Circuit Low
16
18
62 144
129
51
65
1
PI743
PI743
PI743
PI746
PI746 - Pi747
Shift Solenoid 'A' Control Circuit Low
Shift Solenoid 'C' Control Circuit Low
Double Error Output Speed and
inputflurbine Speed
CAN Version Error
CAN
Timeout Control Module
Gear
1 manual Incorrect Ratio
Gear Monitoring 4 at Electrical Substitute Program
Pressure
Control Solenoid 'B' Eieclrical
2
3
29
PI747
PI747
Pressure Control Solenoid 'B' Electrical
Pressure Control Solenoid
'C' Electrical
Pressure Control Solenoid
'C' Electrical
4
5
51
83 104 Pressure Control Solenoid
'E' Electrical (M44lM52: Brake
Band Electrical)
Pressure Control Solenoid
'E' Electrical (M44lM52: Bralte Band Electrical)
Pressure Control Solenoid
'E' Electrical (M44lM52: Brake Band Electrical)
Transmission Control Module Output Stage
Transmission Control Module Output Stage
129 128 CAN-Bus Monitoring CAN-Bus Monitoring
144 CAN-Bus Monitoring

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OBD-12
On-Board Diagnostics
Automatic transmission diagnostic trouble codes (continued)
P-code
PI747
PI747
PI 747
PI748
PI748 I I
PI748
PI748
PI748
PI 748
PI 749
PI 750
P1750
PI761
PI761
BMW-FC
150
151
156
15
80
-- PI762
PI763
PI764
PI765
PI765
PI765
P1770
DTC Definition
CAN-BUS Monitoring
CAN-Bus Monitoring
CAN-Bus Monitoring
Transmission Control Module Self-Test
Transmission
Control Module Self-Test
PI748 182 l~ransmission Control Module Self-Test
81
103
105
110
I I
Transmission Control Module Self-Test
Transmission Control Module Self-Test
Transmission Control Module Self-Test
Transmission Control Module Self-Test
19
19
19
147
154
158
146
PI 790
PI791
P1792
PI 794
PI 801
P1802
PI 803
PI 831 Shiftiock Solenoid High input
Shiftlock Solenoid
Low Input
Shiftlock Solenoid Open Circuit
CAN Throttle Valve
CAN Throttle Valve
CAN Throttle Valve
CAN
Torpue Interlace
CAN Torque Reduction
PI 780
I I -
108
54
96
2 19
PI 780 1163 ICAN Torque Reduction
152
80
81
82
80
16
17 18
1 Secondary Pressure Solenoid Communication Error
(M52: Internal
Transmission Control Module Memory Error)
Secondary Pressure Solenoid Circuit
Rangelperformance (System Voltage Input Low)
Secondary Pressure Solenoid Circuit
RangeIPerformance (System Voltage Input Low)
Shiftioclc Solenoid
Shiftiocic Solenoid
internal Transmission Control Module Memory ChecksumlEPROM Error
internal Transmission Control Module Memory
ChecksumIEEPROM Error
internal Transmission Control Module Watchdog Error
internal Transmission Control Module Memory Checksum Error
Shift Solenoid
'A' Low Input
Shift Solenoid
'8' Low Input
Shift Solenoid
'C' Low input
Pressure Control Solenoid
'A' Circuit High
Pressure Control Solenoid 'B' Circuit High
PI832
PI833 13 IPressure Control Solenoid 'C' Circuit High
2

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On-Board Diagnostics
l~utomatic transmission diagnostic trouble codes (continued)
P-code
1 Pi844
I I
14 /Pressure Control Solenoid 'D' Circuit Low
I I PI841 11 /Pressure Control Solenoid 'A' Circuit Low
BMW-FC
Pi842
I
P2722 15 I Pressure Control Solenoid 'E' I
DTC
Definition
Pi 845
Pi 882
Pi 883
PI 889
PI891
PI 892
PI 893
Pi 843 3 8
2 Pressure Control Solenoid '0' Circuit Low
5
57
58
96
96
96
83
P2729
P2730
P2759
P2761
P2763
P2764
Pressure Control Solenoid 'E' Circuit Low
2-3 Shift Circuit High
3-4 Shift Circuit High
System Voltage
- Electrical
System Voltage High Input
System Voltage Low Input
SUDP~V Voltaqe Pressure Control SoienoidIShift Solenoid Circuit High
~~ ~~ ~ Engine diagnostic trouble codes: M52 engine
5
5
4
4
4
4
I I
Pressure Control Solenoid 'E' Control Circuit Low
Pressure Control Solenoid
'E' Control Circuit High
Torque Converter Clutch Pressure Control
Solenoid Control Circuit Electrical
Torque Converter Clutch Pressure Control Solenoid Control
Circuitlopen
Torque Converter Clutch Pressure Control Solenoid Control Circuit High
Torque Converter Clutch Pressure Control Solenoid Control Circuit Low
DTC Definition
Mass or Volume Air
Flow Circuit RangeIPerformance
lntalte Air Temperature Sensor 1 Circuit Rangelperformance
Engine Coolant Temperature Circuit RangeIPerformance
ThrottieIPedai Position SensorISwitch 'A' Circuit
ThrottleIPedai Position SensorISwitch 'A' Circuit
P-code
PO1
01
PO1 11
PO116
PO120
PO120
PO1 20 BMW-FC
8 14
10
112
113
POI 20 1173 /~hrottie/~edal Position SensorISwitch 'A' Circuit
118
ThrottieIPedai Position SensorISwitch 'A' Circuit

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OBD-14
I On-Board Diagnostics
I Engine diagnostic trouble codes: M52 engine (continued) - - -
P-code IBMW-FC ~DTC Definition
PO133
PO134
PO135
PO136
PO136
PO136
PO139
PO141
I I
PO150 1155 102 Sensor Circuit (Bank 2 Sensor 1)
I
I
229
186
25
156
157
215
220 61
PO150 02
Sensor Circuit
Slow Response (Banlc 1 Sensor 1)
02 Sensor Circuit No Activity Detected
(Bank 1 Sensor 1)
02 Sensor Heater Circuit (Bank 1 Sensor 1)
02 Sensor Circuit
(Banlc 1 Sensor 2)
02 Sensor Circuit (Bank 1 Sensor 2)
02 Sensor Circuit (Bank 1 Sensor 2)
02 Sensor Circuit Slow Response
(Bank 1 Sensor 2)
02 Sensor Heater Circuit
(Bank 1 Sensor 2)
PO153
PO154
PO155
PO156
PO156
PO156
PO150 1154 102 Sensor Circuit (Bank 2 Sensor 1)
153
PO159
PO161
PO170
02
Sensor Circuit (Banic 2 Sensor 1)
230
187
55
159
160
21 6
p~-~~--~ PO173
PO201
PO202
PO203
PO204
PO205
PO206
02 Sensor Circuit Slow Response (Banlc 2 Sensor 1)
02 Sensor Circuit No Activity Detected (Bank 2 Sensor
1)
02 Sensor Heater Circuit (Bank 2 Sensor 1)
02 Sensor Circuit (Bank 2 Sensor 2)
02 Sensor Circuit (Banlc 2 Sensor 2)
02 Sensor Circuit (Banlc 2 Sensor 2)
221
79
202 02
Sensor Circuit Slow Response (Banic 2 Sensor 2)
02 Sensor Heater Circuit
(Banic 2 Sensor 2)
Fuel Trim
(Banic 1)
203
6
5
22
24
33
23
Fuel Trim (Banic 2)
injector
Circuitlopen -Cylinder 1
injector
Circuitlopen - Cylinder 2
injector
Circuitlopen -Cylinder 3
Injector
Circuitlopen - Cylinder 4
injector
Circuitlopen - Cylinder 5
lniector
CircuitlOpen - Cvlinder 6

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OBD-15
On-Board ~iagnosticsl
Engine diagnostic trouble codes: M52 engine (continued)
P-code
PO340
PO412
PO420
PO430
PO440
PO441
PO442
PO443
PO500
PO505
PO600
PO601
PO601
I PO601
~1132
~1133
BMW-FC
65
62
233
234
250 144
-
145
68
214
i I
DTC Definition
Camshalt Position Sensor 'A' Circuit (Bank 1 or Single Sensor)
Secondary Air Injection System Switching Valve A Circuit
Catalyst System Efficiency Below Threshold
(Bank 1)
Catalyst System Efficiency Below Threshold (Bank 2)
Evaporative Emission System
Eva~orative Emission Svstem Incorrect Purge Flow .
Evaporative Emission System Leak Detected (small leak)
Evaporative Emission System Purge Control Valve Circuit
Vehicle Speed Sensor 'A'
204
21 7
100
170
171
188
189
PI161
PI180
PI181
PI184
PI185
PI178
02 Sensor Heater Control Circuit (Bank 2 Sensor 2) I
idle Air Control System
Serial Communication
Link
Internal Control Module Memory Check Sum Error
Internal Control Module Memory
Check Sum Error
Internal Control Module Memory
Check Sum Error
02 Sensor Heater Control Circuit (Bank 1 Sensor
1)
02 Sensor Heater Control Circuit (Bank 2 Sensor 1)
Mass or Volume Air Flow Circuit RangeIPerlormance Problem PI140
I
I I
P1188 1227 I Fuel Control (Bank 1 Sensor 1)
PI145 150 /Solenoid Valve Running Losses Control Circuit Electrical
149
122
223
224
220 221
231
I I
P1189 1228 I Fuel Control (Banlc 2 Sensor 1)
Fuel Trim Adaptation Additive High (Bank 2) (M52: Engine Oil Temperature Sensor Circuit)
02 Sensor Signal Circuit Slow Switching from Rich to Lean
(Bank 1 Sensor 2)
02 Sensor Signal Circuit Slow Switching from Rich to Lean
(Bank 2 Sensor 2)
H02S Sensor Voltage Excursion Electrical (Banlc 1 Sensor 1)
HO2S Sensor Voltage Excursion Electrical (Banlc 2 Sensor 1)
02 Sensor Sianai Circuit Slow Switchina from Rich to Lean (Bank 1 Sensor 1)
02 Sensor Signal Circuit Slow Switching from Rich to Lean (Bank 2 Sensor 1) PI179
I I
PI190 1235 I Pre Catalyst Fuel Trim System (Banlc 1)
PI186 1190 102 Sensor Heater Control Circuit (Banlc 1 Sensor 2)
232
I I
PI191 1236 I Pre
Catalyst Fuel Trim System (Banlc 2)
PI192
. . -- - i Pi193 1226 I Post Catalvst Fuel Trim Svstem (Bank 2)
225
PI397
I I
Post Catalyst Fuel Trim System (Bank 1)
PI421 1246 /Secondarv Air System (Bank 2)
18
Secondary Air System (Bank
1) PI423
Camshaft Position Sensor '0' Circuit (Bank 1)
I 245

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--- -
On-Board Diagnostics - - --- - -- - -
PI542
PI550
PI580
PI 580
PI 580
PI 593
PI622
PI623
PI623
PI 624 176
27 109
114
119
124
123
115
116
168 Pedal Position Sensor Electrical
Idle-Speed
Control Valve Closing Coil Electrical
Throttle Valve Mechanically Stuck
(M73: Throttle Valve 1 Spring Test)
Throttle Valve Mechanically Stuck
(M73: Throttle Valve 1 Spring Test)
Throttle Valve Mechanically Stuck
(M73: Throttle Valve 1 Spring Test)
DlSA (Differentiated lntalte Manifold) Control Circuit Electrical
Map Cooling Thermostat Control Circuit Electrical
Pedal Position Sensor Potentiometer Supply
Pedal Position Sensor Potentiometer Supply
Pedal Position Sensor Potentiometer Supply Channel
1 Electrical (M52: Coolant Thermostat (Coolant
Temperature Below Thermostat Regulating Temperature))