Service Code Definition Charts

2-DIGIT SERVICE CODE DEFINITION CHART

DTC ⁽¹⁾

DIAGNOSTIC TROUBLE CODE DEFINITION

11 orc

System PASS

12 r

Cannot control rpm during Self-Test high rpm check

13 r

Cannot control rpm during Self-Test low rpm check

14 c

PIP circuit failure

14 c

Engine rpm (RPM) sensor circuit fault (Diesel)

15 c

PCM Read Only Memory (ROM) test failed

15 c

PCM Keep Alive Memory (KAM) test failed

18 r

SPOUT circuit open

18 c

Loss of IDM input to PCM/SPOUT circuit grounded

19 o

Failure in PCM internal voltage

21 or

Engine Cooling Temperature (ECT) sensor out of Self-Test range

22 orc

Manifold Absolute Pressure (MAP) sensor out of Self-Test range

22 orc

BARO sensor out of Self-Test range (Diesel)

23 orc

Throttle Position (TP) Sensor out of Self-Test range

24 or

Intake Air Temperature (IAT) sensor out of Self-Test Range

25 r

Knock not sensed during Dynamic Response Test

26 or

Transmission Oil Temp (TOT) out of Self-Test range

29 c

Insufficient input from Programmable Speedometer/ Odometer Module (PSOM)

31 orc

EVP circuit below minimum voltage

32 orc

EVP voltage below closed limit

33 rc

EGR valve opening not detected

33 c

Throttle Position (TP) sensor noisy, harsh on line (Diesel)

34 orc

EVP voltage above closed limit

35 orc

EVP circuit above maximum voltage

41 r

System indicates lean

41 c

No HO2S switching detected

42 r

System indicates rich

43 c

Throttle Position (TP) sensor below idle spec (Diesel)

44 r

Secondary air system inoperative

45 r

Secondary air upstream during Self-Test

46 r

Secondary air not bypassed during Self-Test

47 o

4 x 4 switch is closed

49 c

1-2 shift error

51 oc

ECT indicated -40°C (-40°F)/circuit open

52 o

Power Steering Pressure (PSP) switch circuit open

52 r

PSP circuit did not change states

53 oc

TP above maximum voltage

54 oc

IAT indicated -40° (-40°F)/circuit open

56 oc

Transmission Oil Temp (TOT) indicated -40°C (-40°F) circuit open

59 c

2-3 shift error

61 oc

ECT indicated 123°C(254°F)/circuit grounded

62 c

Torque Converter Clutch error

63 oc

TP circuit below minumum voltage

64 oc

IAT indicated 123°C(254°F)/circuit grounded

65 r

Transmission Control Switch (TCS) circuit did not change states

66 oc

Transmission Oil Temp. (TOT) indicated 143°C(290°F) /circuit grounded

67 o

Park/Neutral Position (PNP) switch circuit open; A/C ON (Manual)

67 oc

Manual Lever Position (MLP) sensor out of range; A/C/ ON

68 c

Transmission Oil Temp (TOT) transmission over temp (over-heated) (Diesel)

69 c

3-4 shift error

72 r

Insufficient MAP change during Dynamic Response Test

73 r

Insufficient TP change during Dynamic Response Test

74 rc

Brake On/Off (BOO) circuit open - not actuated during Self-Test

77 r

Operator error Dynamic Response Test

81 o

Secondary Air Injectoion Diverter (AIRD) circuit failure

82 o

Secondary Air Injection Bypass (AIRB) circuit failure

84 o

EGR Vacuum Regulator (EVR) circuit failure

85 o

Canister Purge (CANP) circuit failure

87 oc

Primary fuel pump circuit failure

91 o

Shift Solenoid 1 (SS1) circuit failure

92 o

Shift Solenoid 2 (SS2) circuit failure

93 o

Coast Clutch Solenoid (CCS) circuit failure

94 o

Torque Converter Clutch (TCC) solenoid circuit failure

95 oc

Fuel pump circuit open - PCM to motor ground

96 oc

Fuel pump circuit open - battery to PCM

97 o

Transmission Control Indicator Lamp (TCIL) circuit failure

98 r

Hard fault present

98 o

Electronic Pressure Control (EPC) driver open in PCM (Diesel)

99 oc

Electronic Pressure Control (EPC) circuit failure

NO DTCS

Unable to Self-Test or unable to output to DTCs

DTCs Not Listed

DTCs being displayed are not applicable to the vehicle being tested

⁽¹⁾	KEY: o = Key On Engine Off (KOEO) r = Engine Running (ER) c = Continuous Memory

3-DIGIT SERVICE CODE DEFINITION CHART

DTC	DIAGNOSTIC TROUBLE CODE DEFINITION
111	System Pass
112	Intake Air Temp. (IAT) sensor circuit below minimum voltage/254°F indicated
113	Intake Air Temp. (IAT) sensor circuit above maximum voltage/-40°F indicated
114	Intake Air Temp. (IAT) higher or lower than expected
116	Engine Coolant Temp. (ECT) higher or lower than expected
117	Engine Coolant Temp. (ECT) sensor circuit below minimum voltage/254°F indicated
118	Engine Coolant Temp. (ECT) sensor circuit above maximum voltage/-40°F indicated
121	Closed throttle voltage higher or lower than expected
121	Indicates throttle position voltage inconsistent with the MAF sensor
122	Throttle Position (TP) sensor circuit below minimum voltage
123	Throttle Position (TP) sensor circuit above maximum voltage
124	Throttle Position (TP) sensor voltage higher than expected
125	Throttle Position (TP) sensor voltage lower than expected
126	MAP/BARO sensor higher or lower than expected
128	MAP sensor vacuum hose damaged/disconnected
129	Insufficient MAP/Mass Air Flow (MAF) change during dynamic response test KOER
136	System indicates lean (Bank #2)
137	System indicates rich (Bank #2) (KOER)
157	Mass Air Flow (MAF) sensor circuit below minimum voltage
158	Mass Air Flow (MAF) sensor circuit above maximum voltage
159	Mass Air Flow (MAF) higher or lower than expected
167	Insufficient throttle position change during dynamic reponse test
171	Fuel system at adaptive limits (Bank #1)
172	System indicates lean (Bank #1)
173	System indicates rich (Bank #1)
175	Fuel system at adaptive limits (Bank #2)
176	System indicates lean (Bank #2)
177	System indicates rich (Bank #2)
179	Fuel system at lean adaptive limit at part throttle, system rich (Bank #1)
181	Fuel system at rich adaptive limit at part throttle, system lean (Bank #1)
184	Mass Air Flow (MAF) higher than expected
185	Mass Air Flow (MAF) lower than expected
186	Injector pulse width higher than expected (with BARO sensor)
186	Injector pulse width higher or MAF lower than expected (without BARO sensor)
187	Injector pulse width lower than expected (with BARO sensor)
187	Injector pulse width lower or MAF higher than expected (without BARO sensor)
188	Fuel system at lean adaptive limit at part throttle, system rich (Bank #2)
189	Fuel system at rich adaptive limit at part throttle, system lean (Bank #2)
211	Profile Ignition Pickup (PIP) circuit failure
212	Loss of Ignition Diagnostic Monitor (IDM) input to PCM/SPOUT circuit grounded
213	SPOUT circuit open
214	Cylinder Identification (CID) circuit failure
215	PCM detected coil 1 primary circuit failure (EI)
216	pcm detected coil 2 primary circuit failure (EI)
217	PCM detected coil 3 primary circuit failure (EI)
218	Loss of Ignition Diagnostic Motor (IDM) signal - left side (dual plug EI)
222	Loss of Ignition Diagnostic Motor (IDM) signal - right side (dual plug EI)
223	Loss of Dual Plug Inhibit (DPI) control (dual plug EI)
224	PCM detected 1, 2, 3 or 4 primary circuit failure (dual plug EI)
225	Knock not sensed during dynamic response test KOER
226	Ignition Diagnostic Monitor (IDM) signal not received (EI)
232	PCM detected 1, 2, 3 or 4 primary circuit failure (EI)
311	Secondary Air Injection (AIR) system inoperative during KOER (Bank #1 w/dual HO2S)
312	Secondary Air Injection (AIR) misdirected during KOER
313	Secondary Air Injection (AIR) not bypassed during KOER
327	EGR (EVP/PFE/DPFE) circuit below minimum voltage
328	EGR (EVP) closed valve voltage lower than expected
332	Insufficient EGR flow detected
334	EGR (EVP) closed valve voltage higher than expected
335	EGR(PFE) sensor voltage lower than expected during KOEO
336	Exhaust pressure high/EGR (PFE) circuit voltage higher than expected
337	EGR(EVP/PFE) circuit above maximum voltage
341	Octane adjust service pin open
411	Cannot control RPM during KOER low RPM check
412	Cannot control RPM during KOER high RPM check
452	Insufficient input from Vehicle Speed Sensor (VSS) to Powertrain Control Module (PCM)
511	PCM Read Only Memory (ROM) test failure KOEO
512	PCM Keep Alive Memory (KAM) test failure
513	PCM internal voltage failure (KOEO)
519	Power Steering Pressure (PSP) switch circuit open KOEO
521	Power Steering Pressure (PSP) switch circuit did not change states KOER
522	Vehicle not in PARK or NEUTRAL during KOEO (%)
528	Clutch Pedal Position (CPP) switch circuit failure
536	Brake On/Off (BOO) circuit failure/not actuated during KOER
538	Insufficient RPM change during KOER dynamic response test
538	Invalid cylinder balance test due to throttle movement during test
538	Invalid cylinder balance test due to CID circuit failure
539	A/C on/Defrost on during KOEO
542	Fuel pump circuit open - PCM to motor ground
543	Fuel pump circuit open - battery to Powertrain Control Module (PCM)
551	Idle Air Control (IAC) circuit failure KOEO
552	Secondary Air Injection Bypass (AIRB) circuit failure KOEO
553	Secondary Air Injection Diverter (AIRD) circuit failure KOEO
556	Fuel pump relay primary circuit failure
558	EGR Vacuum Regulator (EVR) circuit failure
565	Canister Purge (CANP) circuit failure KOEO
566	3-4 shift solenoid circuit failure KOEO (A4LD)
569	Auxiliary Canister Purge (AUX-CANP) circuit failure
617	1-2 shift error
618	2-3 shift error
619	3-4 shift error
621	Shift Solenoid 1 (SS1) circuit failure KOEO
622	Shift Solenoid 2 (SS2) circuit failure KOEO
624	Electronic Pressure Control (ECP) circuit failure
625	Electronic Pressure Control (ECP) driver open in PCM
626	Coast Clutch Solenoid (CCS) circuit failure KOEO
628	Excessive torque converter clutch slippage
629	Torque Converter Clutch (TCC) solenoid circuit failure
631	Transmission Control Indicator Lamp (TCIL) circuit failure KOEO
632	Transmission Control Switch (TCS) circuit did not change states during KOER
633	4 x 4L switch closed during KOEO
634	Manual Lever Position (MLP) voltage higher or lower than expected
636	Transmission Oil Temp (TOT) higher or lower than expected
637	Transmission Oil Temp (TOT) sensor circuit above maximum voltage/-40°F indicated
638	Transmission Oil Temp (TOT) sensor circuit below minimum voltage/ 290°F indicated
639	Insufficient input from Transmission Speed Sensor
654	Manual Lever Position (MLP) sensor indicating not in PARK during Self-Test
655	Manual Lever Position (MLP) sensor indicating not in NEUTRAL during Self-Test
656	Torque Converter Clutch slippage error
998	Hard fault present - FMEM MODE