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Home >> Acura >> 2009 >> RL >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Adaptive Cruise Control (Acc) System >> DTC Troubleshooting Index
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC Troubleshooting Index

TROUBLESHOOTING CHART

DTC Detection Item Adaptive Cruise Control (ACC) Indicator
10  Vehicle speed signal error ON
11  Left rear wheel speed sensor problem ON
12  Right rear wheel speed sensor problem ON
13  Left front wheel speed sensor problem ON
14  Right front wheel speed sensor problem ON
21  Yaw rate-lateral/longitudinal acceleration sensor malfunction ON
22  Yaw rate-lateral/longitudinal acceleration sensor center position revision value error ON
23  Yaw rate-lateral/longitudinal acceleration sensor gain error ON
25  Yaw rate-lateral/longitudinal acceleration sensor stabilizing malfunction ON
30  Adaptive cruise control (ACC) relay circuit malfunction ON
43  Cal FL brake system malfunction ON
44  Cal FL fluid pressure sensor circuit open/short ON
45  Cal FL fluid pressure sensor center position error ON
46  Cal FL fluid pressure sensor shift error ON
47  Cal FR brake system malfunction ON
48  Cal FR fluid pressure sensor circuit open/short ON
49  Cal FR fluid pressure sensor center position error ON
50  Cal FR fluid pressure sensor shift error ON
60  Communication line error ON
61  Millimeter wave radar communication error ON
62  Millimeter wave radar sensor error ON
63  Millimeter wave radar aiming error ON
73  Variation failure of the PCM -
81  Engine control system (including PCM) malfunction -
83  Millimeter wave radar detection unstable -
84  Target vehicle comes closer than the millimeter wave radar detecting limits -
85  Extensive driving on a rough or winding road, or VSA system malfunction -
86  Abnormal tire pressure -
87  Adaptive cruise control (ACC) brake control temporarily prohibited -
88  Millimeter wave radar out of detection condition -
89  Front wheel spin -
90  A/T control system (including PCM) malfunction -
91  Vehicle skidded, spun out, or abrupt steering wheel movements -
92  VSA modulator-control unit malfunction -
93  Front tire problem -
94  Rear tire problem -
95  Power supply voltage too high -
96  Power supply voltage too low -
99  Acceleration/deceleration abnormality -
100: CMBS initial check incomplete ON
101  Left rear wheel locked -
105  Dust or dirt on the millimeter wave radar -
107  Millimeter wave radar aiming incomplete ON
110  Lost communication with the PCM (PGM-FI system) -
111  Lost communication with the PCM (A/T system) -
112  Lost communication with the VSA modulator-control unit -
113  Lost communication with the gauge control module -
115  Lost communication with the SH-AWD control unit -
DTCs (if the aiming is incomplete)  Two or more aiming targets exist -
DTCS (IF THE AIMING IS INCOMPLETE)  The width of the aiming target is out of specification (DTC 121) -
DTCS (IF THE AIMING IS INCOMPLETE) (DTC 122)   The distance of the aiming target is out of specification -
DTCS (IF THE AIMING IS INCOMPLETE) (DTC 123)  The aiming target is moved -
DTCS (IF THE AIMING IS INCOMPLETE) (DTC 124)  The right and left position of the aiming target is out of specification -
NOTE: For CMBS DTCs, refer to the DTC troubleshooting index of the CMBS section.